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1 AARONSON,M. AND BOROSON,T. 1980,NATURE 283,746. 2 ABELL,G.O.,EASTMOND,T.S. AND JENNER,D.C. 1978,ASTROPHYS. J. 221,L1. 3 ADAM,G. 1978,ASTRON. ASTROPHYS. SUPPL. 31,151. 4 ADAM,G. 1985,ASTRON. ASTROPHYS. SUPPL. 61,225. 5 ADAMS,M.T. AND RUDNICK,L. 1977,ASTRON. J. 82,857. 6 ADAMS,T.F. 1977,ASTROPHYS. J. SUPPL. SER. 33,19. 7 ADAMS,T.F. AND WEEDMAN,D.W. 1975,ASTROPHYS. J. 199,19. 8 ADGIE,R.L. 1974,ASTRON. J. 79,847. 9 ADGIE,R.L.,PALMER,H.P. AND PENSTON,M.V. 1975,MONTHLY NOTICES ROY. ASTRON. SOC. 170,31P. 10 AFANASJEV,V.L.,DENISYUK,E.K. AND LIPOVETSKI,V.A. 1979,SOVIET AJ LETTERS 5,144. 11 AFANASJEV,V.L.,KARACHENTSEV,I.D.,LIPOVETSKI,V.A.,LORENZ,H. AND STOLL,D. 1979,ASTRON. NACHR. 300,31. 12 AFANASJEV,V.L.,KARACHENTSEV,I.D.,LIPOVETSKI,V.A. AND LORENZ,H. 1979,ASTRON. NACHR. 300,77. 13 AFANASJEV,V.L.,LIPOVETSKI,V.A.,MARKARIAN,B.E. AND STEPANIAN,D.A. 1979,ASTRO PHYSICS 16,119. 14 AGNEW,D.,ARP H. 1973,PUBL. ASTRON. SOC. PACIFIC 85,87. 15 ALCAINO,G. 1976,ASTRON. ASTROPHYS. SUPPL. 26,261. 16 ALLEN,D.A.,LONGMORE,A.J.,HAWARDEN,T.G.,CANNON,R.D. AND ALLEN,C.J. 1978, MONTHLY NOTICES ROY. ASTRON. SOC. 184,303. 17 ALLINGTON-SMITH,J.R. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 199,611. 18 ALLINGTON-SMITH,J.R.,PERRYMAN,M.A.C.,LONGAIR,M.S.,GUNN,J.E. AND WESTPHAL, J.A. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 201,331. 19 ALLINGTON-SMITH,J.R.,LILLY,S.J. AND LONGAIR,M.S. 1985,MONTHLY NOTICES ROY. ASTRON. SOC. 213,243. 20 ALTSCHULER,D.R. 1986,ASTRON. ASTROPHYS. SUPPL. 65,267. 21 ANDERSON,S.F. 1985,'THE X-RAY PROPERTIES OF HIGH REDSHIFT, OPTICALLY SELECTED QSO'.PHD. 22 ANDERSON,S.F. AND MARGON,B. 1986,'THE X-RAY PROPERTIES OF HIGH REDSHIFT QUASI-STELLAR OBJECTS'. 23 ANGUITA,A.C. AND PEDREROS,M. 1977,ASTRON. J. 82,102. 24 ANGUITA,A.C.,CAMPUSANO,L.E.,TORRES,C. AND PEDREROS,M. 1979,ASTRON. J. 84,718 25 ANTONUCCI,R.R.J.,HICKSON,P.,MILLER,J.S. AND OLSZEWSKI,E.W. 1986, 'TWO NEW BLAZAR REDSHIFTS'. 26 APPARAO,K.V.,BIGNAMI,G.F.,MARASCHI,L,HELMKEN,H.,MARGON,B.,HJELLMING,R., BRADT,H.V. AND DOWER,R.G. 1978,NATURE 273,450. 27 ARAKELIAN,M.A. 1975,PUBL. BYURAKAN OBS. 47,3. 28 ARAKELIAN,M.A.,DIBAI,E.A. AND LYUTYI,B.M. 1972,ASTROPHYSICS 8,280. 29 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1970,ASTROPHYSICS 6,14. 30 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1972,ASTROPHYSICS 8,197. 31 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1973,ASTROPHYSICS 9,183. 32 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1975,ASTROPHYSICS 11,254. 33 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1976,ASTROPHYSICS 12,122. 34 ARAKELIAN,M.A.,DIBAI,E.A. AND ESIPOV,V.F. 1976,ASTROPHYSICS 12,456. 35 ARAKELIAN,M.A.,DIBAI,E.A.,ESIPOV,V.F. AND MARKARIAN,B.E. 1971,ASTROPHYSICS 7,102. 36 ARGUE,A.N. AND SULLIVAN,C. 1980,MONTHLY NOTICES ROY. ASTRON. SOC. 192,779. 37 ARGUE,A.N.,KENWORTHY,C.M. AND STEWART,P.M. 1973,ASTROPHYS. LETTERS 14,99. 38 ARGUE,A.N.,KENWORTHY,C.M.,RYLE,M. AND SHAKESHAFT,J.R. 1973,NATURE P.S. 241,139. 39 ARKHIPOVA,V.P. AND ESIPOV,V.F. 1979,SOVIET AJ LETTERS 5,90. 40 ARNAUD,K.A.,BRANDUARDI-RAYMONT,G.,CULHANE,J.L.,FABIAN,A.C.,HAZARD,C., MCGLYNN,T.A.,SHAFER,R.A.,TENNANT,A.F. AND WARD,M.J. 1985,MONTHLY NOTICES 40 ROY. ASTRON. SOC. 217,105. 41 ARNAUD,K.A.,FABIAN,A.C.,HAZARD,C.,CONDON,J.J. AND SARGENT,W.L.W. 1984, 'AN OPTICALLY SELECTED SAMPLE OF X-RAY-QUIET QSOS'. 42 ARP,H. 1966,ASTROPHYS. J. SUPPL. SER. 14,1. 43 ARP,H. 1968,ASTROPHYS. J. 152,1101. 44 ARP,H. 1971,ASTROPHYS. LETTERS 9,1. 45 ARP,H. 1976,ASTROPHYS. J. 210,L59. 46 ARP,H. 1977,COLLOQUE INTL N 263 (PARIS CNRS) P. 377. 47 ARP,H. 1977,ASTROPHYS. J. 218,70. 48 ARP,H. 1980,ASTROPHYS. J. 240,415. 49 ARP,H. 1980,ASTROPHYS. J. 236,63. 50 ARP,H. 1980,PROC. 9TH TEXAS SYMPOSIUM (ANN. NEW YORK ACAD SCI. 336,P.94). 51 ARP,H. 1981,ASTROPHYS. J. 250,31. 52 ARP,H. 1981,ASTROPHYS. J. SUPPL. SER. 46,75. 53 ARP,H. 1983,ASTROPHYS. J. 271,479. 54 ARP,H. 1984,ASTROPHYS. J. 283,59. 55 ARP,H. 1984,ASTROPHYS. J. 285,547. 56 ARP,H. AND DUHALDE,D. 1985,PUBL. ASTRON. SOC. PACIFIC 97,1149. 57 ARP,H. AND GAVAZZI,G. 1984,ASTRON. ASTROPHYS. 139,240. 58 ARP,H. AND HAZARD,C. 1980,ASTROPHYS. J. 240,726. 59 ARP,H. AND KHACHIKIAN,E.E. 1975,ASTROPHYSICS 9,308. 60 ARP,H. AND SULENTIC,J.W. 1979,ASTROPHYS. J. 229,496. 61 ARP,H. AND SURDEJ,J. 1982,ASTRON. ASTROPHYS. 109,101. 62 ARP,H. AND VISVANATHAN,N. 1970,ASTROPHYS. LETTERS 5,73. 63 ARP,H.,BOLTON,J. AND KINMAN,T. 1967,ASTROPHYS. J. 147,840. 64 ARP,H.,BURBIDGE,E.,MACKAY,C. AND STRITTMATTER,P. 1972,ASTROPHYS.J. 171,L41. 65 ARP,H.,BALDWIN,J.A. AND WAMPLER,E.J. 1975,ASTROPHYS. J. 198,L3. 66 ARP,H.,DE RUITER,H.R. AND WILLIS,A.G. 1979,ASTRON. ASTROPHYS. 77,86. 67 ARP,H.,SARGENT,W.L.W.,WILLIS,A.G. AND OOSTERBAAN,C.E. 1979,ASTROPHYS. J. 230,68. 68 ARP,H.,SULENTIC,J.W. AND DI TULLIO,G. 1979,ASTROPHYS. J. 229,489. 69 ARP,H.,SULENTIC,J.W.,WILLIS,A.G. AND DE RUITER,H.R. 1976,ASTROPHYS. J. 207,L13. 70 ARP,H.,SURDEJ,J. AND SWINGS,J.P. 1984,ASTRON. ASTROPHYS. 138,179. 71 ARP,H.,WOLSTENCROFT,R.D. AND HE,X.T. 1984,ASTROPHYS. J. 285,44. 72 AZZOPARDI,M. 1985,THE MESSENGER 39,12. 73 BAADE,W. AND MINKOWSKI,R. 1954,ASTROPHYS. J. 119,206. 74 BAADE,W. AND MINKOWSKI,R. 1954,ASTROPHYS. J. 119,215. 75 BAHCALL,N.A.,BAHCALL,J.N. AND SCHMIDT,M. 1973,ASTROPHYS. J. 183,777. 76 BAHCALL,J.,SCHMIDT,M. AND GUNN,J. 1969,ASTROPHYS. J. 157,L77. 77 BAHCALL,J.,BAHCALL,N.A.,MURRAY,S.S. AND SCHMIDT,M. 1975,ASTROPHYS. J. 199,L9. 78 BAILEY,J. AND POOLEY,G. 1968,MONTHLY NOTICES ROY. ASTRON. SOC. 138,51. 79 BALDWIN,J.A.,BURKE,W.L.,GASKELL,C.M. AND WAMPLER,E.J. 1978,NATURE 273,431. 80 BALDWIN,J.A.,WAMPLER,E.J. AND BURBIDGE,E.M. 1981,ASTROPHYS. J. 243,76. 81 BALDWIN,J.A.,BURBIDGE,E.M.,HAZARD,C.,MURDOCH,H.S.,ROBINSON,L.B. AND WAMPLER,E.J. 1973,ASTROPHYS. J. 185,739. 82 BALDWIN,J.A.,SMITH,H.E.,BURBIDGE,E.M.,HAZARD,C.,MURDOCH,H.S. AND JAUNCEY, D.L. 1976,ASTROPHYS. J. 206,L83. 83 BALDWIN,J.A.,WAMPLER,E.J.,BURBIDGE,E.M.,O'DELL,S.L.,SMITH,H.E.,HAZARD,C., NORDSIEK,K.H.,POOLEY,G. AND STEIN,W.A. 1977, ASTROPHYS. J. 215,408. 84 BARBIERI,C.,ERCULIANI,L. AND ROSINO,L. 1968,PUBL. OSSERVATORIO ASTRON. PADOVA N143. 85 BARBIERI,C. 1970,MEM. SOC. ASTRON. ITAL. 41,271 = PUBL. OBS. PADOVA N159. 86 BARBIERI,C. 1973,ASTROPHYS. LETTERS 14,231. 87 BARBIERI,C. AND CRISTIANI,S. 1986,ASTRON. ASTROPHYS. SUPPL. 63,1. 88 BARBIERI,C. AND ROMANO,G. 1976,ASTRON. ASTROPHYS. 50,15. 89 BARBIERI,C.,BARBON,R.,DE BASTIANI,L.,ROMANO,G.,PESCH,P. AND SANDULEAK,N. 1985,ASTRON. ASTROPHYS. SUPPL. 61,163. 90 BARBIERI,C.,CAPACCIOLI,M. AND ZAMBON,M. 1975,MEM. SOC. ASTRON. ITAL. 46,461. 91 BARBIERI,C.,CRISTIANI,S.,IOVINO,A. AND NOTA,A. 1986, 'QUASAR CANDIDATES IN THE FIELD SA 94. II.OBJECTIVE-PRISM CLASSIFICATION 91 OF THE US OBJECTS'. 92 BARBON,R.,BRACCESI,A. AND FANTI,R. 1967,NUOVO CIMENTO(10) 52B,262. 93 BARTEL,N.,SHAPIRO,I.I.,HUCHRA,J.P. AND KUHR,H. 1984,ASTROPHYS. J. 279,112. 94 BARTHEL,P. 1984,PH.D. STERREWACHT LEIDEN 'RADIO STRUCTURE IN QUASARS'. 95 BATTISTINI,P.,BRACCESI,A. AND FORMIGGINI,L. 1974,ASTRON. ASTROPHYS. 35,93. 96 BATTISTINI,P.,BRACCESI,A.,FORMIGGINI,L. AND LARI,C. 1975,ASTRON. ASTRO- PHYS. 40,217. 97 BEAVER,E.A.,HARMS,R.,HAZARD,C.,MURDOCH,H.S.,CARSWELL,R.F. AND STRITTMATTER, P.A. 1976,ASTROPHYS. J. 203,L5. 98 BECHTOLD,J.,FORMAN,W.,GIACCONI,R.,JONES,C.,SCHWARZ,J.,TUCKER,W. AND VAN SPEYBROECK,L. 1983,ASTROPHYS. J. 265,26. 99 BEICHMAN,C.A.,SOIFER,B.T.,HELOU,G.,CHESTER,T.J.,NEUGEBAUER,G.,GILLETT,F.C. LOW,F.J. 1986,ASTROPHYS. J. 308,L1. 100 BEICHMAN,C.,WYNN-WILLIAMS,C.G.,LONSDALE,C.J.,PERSSON,S.E.,HEASLEY,J.N., MILEY,G.K.,SOIFER,B.T.,NEUGEBAUER,G.,BECKLIN,E.E. AND HOUCK,J.R. 1985, 100 ASTROPHYS. J. 293,148. 101 BENNETT,C.L.,LAWRENCE,C.R.,BURKE,B.F.,HEWITT,J.N. AND MAHONEY,J. 1986, ASTROPHYS. J. SUPPL. SER. 61,1. 102 BERGERON,J. AND KUNTH,D. 1980,ASTRON. ASTROPHYS. 85,L11. 103 BERGERON,J. AND KUNTH,D. 1984,MONTHLY NOTICES ROY. ASRON. SOC. 207,263. 104 VAN DEN BERGH,S. 1966,ASTROPHYS. J. 144,866. 105 BERGVALL,N.A.S.,EKMAN,A.B.G.,LAUBERTS,A.,WESTERLUND,B.E.,BORCHKHADZE,T.M., BREYSACHER,J.,LAUTSEN,S.,MULLER,A.B.,SCHUSTER,H.E.,SURDEJ,J. AND WEST,R.M. 105 1978,ASTRON. ASTROPHYS. SUPPL. 33,243. 106 BERGVALL,N.,JOHANSSON,L. AND OLOFSSON,K. 1986,ASTRON. ASTROPHYS. 166,92. 107 BERTAUD,C.,DUMORTIER,B.,VERON,P.,WLERICK,G.,ADAM,G.,BIGAY,J.,GARNIER,R. AND DURUY,M. 1966,ASTRON. ASTROPHYS. 3,436. 108 BIEGING,J.H.,BIERMANN,P.,FRICKE,K.,PAULINY-TOTH,I.I.K. AND WITZEL,A. 1977, ASTRON. ASTROPHYS. 60,353. 109 BIERMANN,P.,DUERBECK,H.,ECKART,A.,FRICKE,K.,JOHNSTON,K.J.,KUHR,H.,LIEBERT, J.,PAULINY-TOTH,I.I.K.,SCHLEICHER,H.,STOCKMAN,H.,STRITTMATTER,P.A. AND 109 WITZEL,A. 1981,ASTROPHYS. J. 247,L53. 110 BINETTE,L.,CARIGNAN,C.,BOLTON,J.G. AND WRIGHT,A.E. 1981,AUSTRALIAN J. PHYS. 34,407. 111 BIRETTA,J.A.,SCHNEIDER,D.P. AND GUNN,J.E. 1985,ASTRON. J. 90,2508. 112 BLADES,J.C.,HUNSTEAD,R.W. AND MURDOCH,H.S. 1981,MONTHLY NOTICES ROY. ASTRON. SOC. 194,669. 113 BLADES,J.C.,MURDOCH,H.S. AND HUNSTEAD,R.W. 1980,MONTHLY NOTICES ROY. ASTRON. SOC. 191,61. 114 BLAKE,G.M. 1970,ASTROPHYS. LETTERS 6,201. 115 BLANCO,V.M. AND HEATHCOTES,S. 1986,PUBL. ASTRON. SOC. PACIFIC 98,635. 116 BOHUSKI,T.J. AND WEEDMAN,D.W. 1979,ASTROPHYS. J. 231,653. 117 BOHUSKI,T.J.,FAIRALL,A.P. AND WEEDMAN,D.W. 1978,ASTROPHYS. J. 221,776. 118 BOKSENBERG,A.,BRIGGS,S.A.,CARSWELL,R.F.,SCHMIDT,M. AND WALSH,D. 1976,MONTHLY NOTICES ROY. ASTRON. SOC. 177,43P. 119 BOKSENBERG,A.,CARSWELL,R.F. AND OKE,J.B. 1976,ASTROPHYS. J. 206,L121. 120 BOLTON,J.G. AND BUTLER,P.W. 1975,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 34,33. 121 BOLTON,J.G. AND EKERS,J. 1966,AUSTRALIAN J. PHYS. 19,275. 122 BOLTON,J.G. AND EKERS,J. 1966,AUSTRALIAN J. PHYS. 19,471. 123 BOLTON,J.G. AND EKERS,J. 1966,AUSTRALIAN J. PHYS. 19,559. 124 BOLTON,J.G. AND EKERS,J. 1966,AUSTRALIAN J. PHYS. 19,713. 125 BOLTON,J.G. AND EKERS,J. 1967,AUSTRALIAN J. PHYS. 20,109. 126 BOLTON,J.G. AND KINMAN,T. 1966,ASTROPHYS. J. 145,951. 127 BOLTON,J.G. AND SAVAGE,A. 1977,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 41,25. 128 BOLTON,J.G. AND SAVAGE,A. 1977,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 44,21. 129 BOLTON,J.G. AND SHIMMINS,A.J. 1973,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 30,1. 130 BOLTON,J.G. AND WALL,J.V. 1969,ASTROPHYS. LETTERS 3,177. 131 BOLTON,J.G. AND WALL,J.V. 1970,AUSTRALIAN J.PHYS. 23,789. 132 BOLTON,J.G.,CLARKE,M. AND EKERS,J. 1965,AUSTRALIAN J. PHYS. 18,627. 133 BOLTON,J.G.,CLARKE,M.,SANDAGE,A. AND VERON,P. 1965,ASTROPHYS. J. 142,1289. 134 BOLTON,J.G.,KINMAN,T. AND WALL,J. 1968,ASTROPHYS. J. 154,L105. 135 BOLTON,J.G.,PETERSON,B.A.,WILLS,B.J. AND WILLS,D. 1976,ASTROPHYS. J. 210,L1. 136 BOLTON,J.G.,SAVAGE,A. AND WRIGHT,A.E. 1979,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 46,1. 137 BOLTON,J.G.,SHIMMINS,A.J. AND MERKELIJN,J. 1968,AUSTRALIAN J. PHYS. 21,81. 138 BOLTON,J.G.,SHIMMINS,A.J.,EKERS,J.,KINMAN,T.D.,LAMLA,E. AND WIRTANEN,C.A. 1966,ASTROPHYS.J. 144,1229. 139 BOLTON,J.G.,SHIMMINS,A.J. AND WALL,J.V. 1975, AUSTRALIAN J. PHYS. ASTRO- PHYS. SUPPL. 34,1. 140 BOLTON,J.G.,TRETT,J.,CARIGNAN,C. AND BINETTE,L. 1981,AUSTRALIAN J. PHYS. 34,445. 141 BOLTON J.G.,WALL J.V. AND SHIMMINS A.J. 1971,AUSTRALIAN J. PHYS. 24,889. 142 BOLTON,J.G.,WRIGHT,A.E. AND SAVAGE,A. 1979,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 46,1. 143 BOND,H.E. AND SARGENT,W.L.W. 1973,ASTROPHYS. J. 185,L109. 144 BOND,H.E.,KRON,R. AND SPINRAD,H. 1977,ASTROPHYS. J. 213,1. 145 BORCHKHADZE,T.M. AND WEST,R.M. 1977,ASTROPHYSICS 13,358. 146 BORCHKHADZE,T.M. AND WEST,R.M. 1980,ASTROPHYSICS 16,233. 147 BOROSON,T.A.,PERSSON,S.E. AND OKE,J.B. 1985,ASTROPHYS. J. 293,120. 148 BOTHUN,G.D.,ROMANISHIN,W.,MARGON,B.,SCHOMMER,R.A. AND CHANAN,G.A. 1982, ASTROPHYS. J. 257,40. 149 BOWYER,S.,BRODIE,J.,CLARKE,J.T. AND HENRY,J.P. 1984,ASTROPHYS. J. 278,L103. 150 BOYLE,B.J.,FONG,R.,SHANKS,T. AND CLOWES,R.G. 1985,MONTHLY NOTICES ROY. ASTRON. SOC. 216,623. 151 BRACCESI,A.,FORMIGGINI,L. AND GANDOLFI,E. 1970,ASTRON. ASTROPHYS. 5,264. 152 BRACCESI,A.,LYNDS,C.R. AND SANDAGE,A. 1968,ASTROPHYS. J. 152,L105. 153 BRADT,H.V.,BURKE,V.F.,CANIZARES,C.R.,GREENFIELD,P.E.,KELLEY,R.L.,MCCLIN- TOCK,J.E. AND VAN PARADIJS,J. 1978,ASTROPHYS. J. 226,L111. 154 BRANDIE,G.W. AND BRIDLE,A.H. 1974,ASTRON. J. 79,903. 155 BRANDUARDI-RAYMONT,G.,MASON,K.O.,MURDIN,P.G. AND MARTIN,C. 1985, MONTHLY NOTICES ROY. ASTRON. SOC. 216,1043. 156 BREGMAN,J.N.,LEBOFSKY,M.J.,ALLER,M.F.,RIEKE,G.H.,ALLER,H.D.,HODGE,P.E., GLASSGOLD,A.E. AND HUGGINS,P.J. 1981,NATURE 293,714. 157 VAN BREUGEL,W.J.M.,HECKMAN,T.M.,MILEY,G.K. AND FILIPPENKO,A.V. 1986,ASTRO- PHYS. J. 311,58. 158 BRIDLE,A.H.,KESTEVEN,M.J.L. AND BRANDIE,G.W. 1977,ASTRON. J. 82,21. 159 BROWNE,I.W.A. 1971,NATURE 231,515. 160 BROWNE,I.W.A,BENTLEY,M.,HAVES,P.,MCEWAN,N.J.,SPENCER,R.E. AND STANNARD,D. 1974,NATURE 252,209. 161 BROWNE,I.W.A.,CROWTHER,J.H. AND ADGIE R.L. 1973,NATURE 244,146. 162 BROWNE,I.W.A. AND MCEWAN N.J. 1972,NATURE P.S. 239,101. 163 BROWNE,I.W.A. AND SAVAGE,A. 1977,MONTHLY NOTICES ROY. ASTRON. SOC. 179,65P. 164 BROWNE,I.W.A.,SAVAGE,A. AND BOLTON,J.G. 1975,MONTHLY NOTICES ROY. ASTRON. SOC. 173,87P. 165 DE BRUYN,A.G. AND WILLIS,A.G. 1974,ASTRON. ASTROPHYS. 33,351. 166 DE BRUYN,A.G.,CRANE,P.C.,PRICE,R.M. AND CARLSON,J.B. 1976,ASTRON. ASTROPHYS. 46,243. 167 BURBIDGE,E.M. 1965,ASTROPHYS. J. 142,1291. 168 BURBIDGE,E.M. 1966,ASTROPHYS. J. 143,612. 169 BURBIDGE,E.M. 1967,ASTROPHYS. J. 147,845. 170 BURBIDGE,E.M. 1967,ASTROPHYS. J. 149,L51. 171 BURBIDGE,E.M. 1968,ASTROPHYS. J. 154,L109. 172 BURBIDGE,E.M. 1969,ASTROPHYS. J. 155,L43. 173 BURBIDGE,E.M. 1970,ASTROPHYS. J. 160,L33. 174 BURBIDGE,E.M. AND KINMAN,T. 1966,ASTROPHYS. J. 145,654. 175 BURBIDGE,E.M. AND STRITTMATTER,P.A. 1972,ASTROPHYS. J. 172,L37. 176 BURBIDGE,E.M.,JUNKKARINEN,V.T.,KOSKI,A.T.,SMITH,H.E AND HOAG,A.A. 1980, ASTROPHYS. J. 242,L55. 177 BURBIDGE,E.M.,LYNDS,C.R. AND BURBIDGE,G.R. 1966,ASTROPHYS. J. 144,447. 178 BURBIDGE,E.M.,SMITH,H.E.,WEYMANN,R.J. 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ASTROPHYS. 168,62. 325 GILMOZZI,R.,WALL,J.V.,MURDIN,P.G.,JORDEN,P.R,THORNE,D.J.,VAN BREDA,I.G., AND PEACOCK,J.A. 1985,NATURE 313,557. 326 GIOIA,I.M.,FEIGELSON,E.D.,MACCACARO,T.SCHILD,R. AND ZAMORANI,G. 1983, ASTROPHYS. J. 271,524. 327 GIOIA,I.M.,MACCACARO,T.SCHILD,R.E.,STOCKE,J.T.,LIEBERT,J.W.,DANZIGER,I.J., KUNTH,D. AND LUB,J. 1984,ASTROPHYS. J. 283,495. 328 GOODRICH,R.W. AND OSTERBROCK,D.E. 1983,ASTROPHYS. J. 269,416. 329 GRANDI,S.A. 1977,ASTROPHYS. J. 215,446. 330 GRANDI,S.A. 1983,MONTHLY NOTICES ROY. ASTRON. SOC. 204,691. 331 GRANDI,S.A. AND OSTERBROCK,D.E. 1978,ASTROPHYS. J. 220,783. 332 GRAUER,A.D. 1984,ASTROPHYS. J. 277,77. 333 GREEN,R.F. 1976,PUBL. ASTRON. SOC. PACIFIC 88,665. 334 GREEN,R.F. AND SCHMIDT,M. 1978,ASTROPHYS. J. 220,L1. 335 GREEN,R.F.,PIER,J.R.,SCHMIDT,M.,ESTABROCK,F.B.,LANE,A.L. AND WAHLQUIST,H.D. 1980,ASTROPHYS. J. 239,483. 336 GREEN,R.F.,SCHMIDT,M. AND LIEBERT,J. 1986,ASTROPHYS. J. SUPPL. SER. 61,305. 337 GREENSTEIN,J. 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AND BURKE,B.F. 1983,ASTROPHYS. J. SUPPL. SER. 51,67. 481 LAWRENCE,C.R.,PEARSON,T.J.,READHEAD,A.C.S. AND UNWIN,S.C. 1986,ASTRON. J. 91,494. 482 LAWRENCE,C.R.,SCHNEIDER,D.P.,SCHMIDT,M.,BENNETT,C.L.,HEWITT,J.N.,BURKE,B.F., TURNER,E.L. AND GUNN,J.E. 1984,SCIENCE 223,46. 483 LEACOCK,R.J.,SMITH,A.G.,EDWARDS,P.L.,POLLOCK,J.T.,SCOTT,R.L.,GEARHART,M.R., PACHT,E. AND KRAUS,J.D. 1976,ASTROPHYS. J. 206,L87. 484 LELIEVRE,G. 1976,PRIVATE COMMUNICATION. 485 LELIEVRE,G. AND WLERICK,G. 1975,ASTRON. ASTROPHYS. 42,293. 486 LE SQUEREN,A.M.,BIRAUD,F. AND LAUQUE,R. 1972,NATURE P.S. 240,75. 487 LEWIS,D.W.,MACALPINE,G.M. AND WEEDMAN,D.W. 1979,ASTROPHYS. J. 233,787. 488 LILLER,W. AND ALCAINO,G. 1982,ASTROPHYS. J. 257,L27. 489 LONGAIR,M.S. AND GUNN,J.E. 1975,MONTHLY NOTICES ROY. ASTRON. SOC. 170,121. 490 LONGO,G. AND DE VAUCOULEURS,A. 1983,'A GENERAL CATALOGUE OF PHOTOELECTRIC MAGNITUDES......',THE UNIVERSITY OF TEXAS MONOGRAPHS IN ASTRONOMY N3. 491 LORENZ,H.,LANGE,M.,RICHTER,G.M. AND STOLL,D. 1978,ASTROPHYS. 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SUPPL. SER. 35,203. 508 MACALPINE,G.M.,SMITH,S.B. AND LEWIS,D.W. 1977,ASTROPHYS. J. SUPPL. SER. 34,95 509 MACALPINE,G.M.,SMITH,S.B. AND LEWIS,D.W. 1977,ASTROPHYS. J. SUPPL. SER. 35,197. 510 MACALPINE,G.M.,WILLIAMS,G.A. AND LEWIS,D.W. 1979,PUBL. ASTRON. SOC. PACIFIC 91,746. 511 MCEWAN,N.J.,BROWNE,I.W.A. AND CROWTHER,J.H. 1975,MEM. ROY. ASTRON. SOC. 80,1. 512 MACHALSKI,J. AND CONDON,J.J. 1979,ASTRON. J. 84,164. 513 MACHALSKI,J. AND CONDON,J.J. 1983,ASTRON. J. 88,1591. 514 MAIA,M.A.G.,DA COSTA,L.N.,WILLMER,C.,PELLEGRINI,P.S. AND RITE,C. 1986, ASTRON. J. 'NEW SOUTHERN GALAXIES WITH ACTIVE NUCLEI'. 515 MALTBY,P.,MATTHEWS,T.A. AND MOFFET,A.T. 1963,ASTROPHYS. J. 137,153. 516 MARENBACH,G. AND APPENZELLER,J. 1982,ASTRON. ASTROPHYS. 108,95. 517 MARGON,B. 1977,ASTROPHYS. J. 211,L5. 518 MARGON,B.,BOROSON,T.A.,CHANAN,G.A.,THOMPSON,I.B. AND SCHNEIDER,D.P. 1986, PUBL. ASTRON. SOC. PACIFIC 518 'SPECTROSCOPY OF SIX X-RAY SELECTED BL LACERTAE CANDIDATES'. 519 MARGON,B.,CHANAN,G.A. AND DOWNES,R.A. 1981,NATURE 290,480. 520 MARGON,B.,DOWNES,R.A. AND CHANAN,G.A. 1985,ASTROPHYS. J. SUPPL. SER. 59,23. 521 MARGON,B.,DOWNES,R.A. AND SPINRAD,H. 1983,NATURE 301,221. 522 MARGON,B.,SPINRAD,H.,HEILES,C.,TOVMASSIAN,H.,HARLAN,E.,BOWYER,S. AND LAMPTON,M. 1972,ASTROPHYS. J. 178,L77. 523 MARKARIAN,B.E. 1967,ASTROPHYSICS 3,24. 524 MARKARIAN,B.E. 1969,ASTROPHYSICS 5,286. 525 MARKARIAN,B.E. 1969,ASTROPHYSICS 5,206. 526 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1971,ASTROPHYSICS 7,299. 527 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1972,ASTROPHYSICS 8,89. 528 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1973,ASTROPHYSICS 9,283. 529 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1974,ASTROPHYSICS 10,185. 530 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1976,ASTROPHYSICS 12,241. 531 MARKARIAN,B.E. AND LIPOVETSKI,V.A. 1976,ASTROPHYSICS 12,429. 532 MARKARIAN,B.E. AND STEPANIAN,D.A. 1983,ASTROPHYSICS 19,354. 533 MARKARIAN,B.E. AND STEPANIAN,D.A. 1984,ASTROPHYSICS 20,10. 534 MARKARIAN,B.E. AND STEPANIAN,D.A. 1984,ASTROPHYSICS 20,278. 535 MARKARIAN,B.E.,ERASTOVA,L.K.,LIPOVETSKI,V.A.,STEPANIAN,D.A. AND SHAPOVALOVA, A.I. 1985,ASTROPHYSICS 21,127. 536 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1977,ASTROPHYSICS 13,116. 537 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1977,ASTROPHYSICS 13,215. 538 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1979,ASTROPHYSICS 15,130. 539 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1979,ASTROPHYSICS 15,235. 540 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1979,ASTROPHYSICS 15,363. 541 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1979,SOVIET AJ LETTERS 5,269. 542 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1980,ASTROPHYSICS 16,1. 543 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1980,ASTROPHYSICS 16,353. 544 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1981,ASTROPHYSICS 17,321. 545 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1983,ASTROPHYSICS 19,14. 546 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1983,ASTROPHYSICS 19,129. 547 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1984,ASTROPHYSICS 20,113. 548 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1985,ASTROPHYSICS 20,371. 549 MARKARIAN,B.E.,LIPOVETSKI,V.A. AND STEPANIAN,D.A. 1985,ASTROPHYSICS 20,581. 550 MARKARIAN,B.E.,STEPANIAN,D.A. AND ERASTOVA,L.K. 1986,ASTROPHYSICS 23,623. 551 MARKARIAN,B.E.,STEPANIAN,D.A. AND LIPOVETSKI,V.A. 1980,ASTRON. TSIRK. 1142,1. 552 MARKARIAN,B.E.,STEPANIAN,D.A. AND LIPOVETSLI,V.A. 1983,ASTRON. TSIRK. 1265,1. 553 MARKARIAN,B.E.,STEPANIAN,D.A. AND LIPOVETSKI,V.A. 1984,ASTRON. TSIRK. 1346,7. 554 MARSHALL,H.L.,AVNI,Y.,BRACCESI,A.,HUCHRA,J.P.,TANANBAUM,H.,ZAMORANI,G. AND ZITELLI,V. 1984,ASTROPHYS. J. 283,50. 555 MARSHALL,H.L.,TANANBAUM,H.,ZAMORANI,G.,HUCHRA,J.P.,BRACCESI,A. AND ZITELLI, V. 1983,ASTROPHYS. J. 269,42. 556 MASLOWSKI,J.,PAULINY-TOTH,I.I.K.,WITZEL,A. AND KUHR,H. 1981,ASTRON. ASTROPHYS. 95,285. 557 MATTHEWS,T.A. AND SANDAGE,A. 1963,ASTROPHYS. J. 138,30. 558 MAYALL,N.U. AND DE VAUCOULEURS,A. 1962,ASTRON. J. 67,363. 559 MERKELIJN,J. 1968,AUSTRALIAN J. PHYS. 21,903. 560 MERKELIJN,J. 1969,AUSTRALIAN J. PHYS. 22,237. 561 MERKELIJN,J. 1972,AUSTRALIAN J. PHYS. 25,451. 562 MERKELIJN,J.,SHIMMINS,A. AND BOLTON,J. 1968,AUSTRALIAN J. PHYS. 21,523. 563 MICHALEC,A. AND MASLOWSKI,J. 1976,ACTA COSMOLOGICA 5,35. 564 MILLER,H.R. 1979,ASTROPHYS. J. 227,52. 565 MILLER,H.R. AND GREEN,R.F. 1983,BULL. AMER. ASTRON. SOC. 15,957. (PG 1553+11). 566 MILLER,J.S.,ROBINSON,L.B. AND WAMPLER,E.J. 1973,ASTROPHYS. J. 179,L83. 567 MILLS,B.Y.,LITTLE,A.G,DURDIN,J.M. AND KESTEVEN,M.J. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 200,1007. 568 MITTON,S.,HAZARD,C. AND WHELAN,J.A.J. 1977,MONTHLY NOTICES ROY. ASTRON. SOC. 179,569. 569 MITCHELL,K.J.,BARDEN,S.C.,WARNOCK,III,A. AND NATIONS,H.L. 1983,PUBL. ASTRON. SOC. PACIFIC 95,45. 570 MITCHELL,K.J.,WARNOCK,III,A. AND USHER,P.D. 1984,ASTROPHYS. J. 287,L3. 571 MOFFAT,A.F.J.,SCHLICKWEISER,R.,SHARA,M.M.,SIEBER,W.,TUFFS,R. AND KUHR,H. 1983,ASTROPHYS. J. 271,L45. 572 MOLES,M.,GARCIA-PELAYO,J.M.,MASEGOSA,A.,APARICIO,A. AND QUINTANA,J,M. 1985,ASTRON. ASTROPHYS. 152,271. 573 MONK,A.S.,PENSTON,M.V.,PETTINI,M. AND BLADES,J.C. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 222,787. 574 MORGAN,W.W. 1958,PUBL. ASTRON. SOC. PACIFIC 70,364. 575 MORGAN,W.W. AND OSTERBROCK,D.E. 1969,ASTRON. J. 74,515. 576 MORTON,D.C. AND TRITTON,K.P. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 198,669. 577 MORTON,D.C.,SAVAGE,A. AND BOLTON,J.G. 1978,MONTHLY NOTICES ROY. ASTRON. SOC. 185,735. 578 MOSELEY,G.F.,BROOKS,C.C. AND DOUGLAS J.N. 1970,ASTRON. J. 75,1015. 579 MURDOCH,H.S. 1976,MONTHLY NOTICES ROY. ASTRON. SOC. 177,441. 580 MURDOCH,H.S. AND HOSKINS,D.G. 1976,AUSTRALIAN J. PHYS. 26,867. 581 MURDOCH,H.S.,HUNSTEAD,R.W.,ARP,H.C.,CONDON,J.J.,BLADES,J.C. AND BURBIDGE, E.M. 1983,ASTROPHYS. J. 265,610. 582 MURDOCH,H.S.,HUNSTEAD,R.W. AND GRAEME,L. 1984,PROC. ASTRON. SOC. AUSTRALIA 5,341. 583 MURDOCH,H.S.,MCADAM,W.B. AND HUNSTEAD,R.W. 1974,NATURE 248,491. 584 NEUGEBAUER,G.,BECKLIN,E.E.,OKE,J.B. AND SEARLE,L. 1976,ASTROPHYS. J. 205,29. 585 NICOLSON,G.D.,GLASS,I.S.,FEAST,M.W. AND ANDREWS,P.J. 1979,MONTHLY NOTICES ROY. ASTRON. SOC. 189,29P. 586 NORTHOVER,K.J.E. 1973,MONTHLY NOTICES ROY. ASTRON. SOC. 165,369. 587 NOTNI,P. 1980,ASTRON. NACHR. 301,51. 588 NOTNI,P.,KARACHENTSEV,I.D. AND AFANASJEV,V.L. 1979,ASTRON. NACHR. 300,121. 589 O'CONNELL,R.W. AND KINGHAM,K.A. 1978,PUBL. ASTRON. SOC. PACIFIC 90,244. 590 OKE,J.B. 1978,ASTROPHYS. J. 219,L97. 591 OKE,J.B.,NEUGEBAUER,G. AND BECKLIN,E. 1970,ASTROPHYS. J. 159,341. 592 OLSEN,E.T. 1970,ASTRON. J. 75,764. 593 OORT,J.H.,ARP,H. AND DE RUITER,H. 1981,ASTRON. ASTROPHYS. 95,7. 594 OSMER,P.S. 1977,ASTROPHYS. J. 218,L89. 595 OSMER,P.S. 1980,ASTROPHYS. J. SUPPL. SER. 42,523. 596 OSMER,P.S. 1982,ASTROPHYS. J. 253,28. 597 OSMER,P.S. AND SMITH,M.G. 1976,ASTROPHYS. J. 210,267. 598 OSMER,P.S. AND SMITH,M.G. 1977,ASTROPHYS. J. 213,607. 599 OSMER,P.S. AND SMITH,M.G. 1977,ASTROPHYS. J. 215,L47. 600 OSMER,P.S. AND SMITH,M.G. 1977,ASTROPHYS. J. 217,L73. 601 OSMER,P.S. AND SMITH,M.G. 1980,ASTROPHYS. J. SUPPL. SER. 42,333. 602 OSMER,P.S.,SMITH,M.G. AND WEEDMAN,D.W. 1974,ASTROPHYS. J. 189,187. 603 OSTERBROCK,D.E. 1977,ASTROPHYS. J. 215,733. 604 OSTERBROCK,D.E. 1981,ASTROPHYS. J. 249,462. 605 OSTERBROCK,D.E. 1983,PUBL. ASTRON. SOC. PACIFIC 95,12. 606 OSTERBROCK,D.E. 1984,ASTROPHYS. J. 280,L43. 607 OSTERBROCK,D.E. 1985,PUBL. ASTRON. SOC. PACIFIC 97,25. 608 OSTERBROCK,D.E. 1985,BULL. AMER. ASTRON. SOC. 17,232. 609 OSTERBROCK,D.E. AND DAHARI,O. 1983,ASTROPHYS. J. 273,478. 610 OSTERBROCK,D.E. AND GRANDI,S.A. 1979,ASTROPHYS. J. 228,L59. 611 OSTERBROCK,D.E. AND PHILLIPS,M.M. 1977,PUBL. ASTRON. SOC. PACIFIC 89,251. 612 OSTERBROCK,D.E. AND POGGE,R.W. 1985,ASTROPHYS. J. 297,166. 613 OSTERBROCK,D.E. AND DE ROBERTIS,M.M. 1985,PUBL. ASTRON. SOC. PACIFIC 97,1129. 614 OSTERBROCK,D.E. AND SHUDER,J.M. 1982,ASTROPHYS. J. SUPPL. SER. 49.149. 615 OSTERBROCK,D.E.,GRANDI,S.A. AND COHEN,R.D. 1978,PUBL. ASTRON. SOC. PACIFIC 90,493. 616 OWEN,F.N. AND MUFSON,S.L. 1977,ASTRON. J. 82,776. 617 OWEN,F.N.,CONDON,J.J. AND LEDDEN,J.E. 1983,ASTRON. J. 88,1. 618 OWEN,F.N.,PORCAS,R.W. AND NEFF,S.G. 1978,ASTRON. J. 83,1009. 619 OWEN,F.N.,PORCAS,R.W.,MUFSON,S.L. AND MOFFETT,T.J. 1978,ASTRON. J. 83,685. 620 OWEN,F.N.,SPANGLER,S.R. AND COTTON,W.D. 1980,ASTRON. J. 85,351. 621 OWEN,F.N.,WILLS,B.J. AND WILLS,D. 1980,ASTROPHYS. J. 235,L57. 622 PADRIELLI,L. AND CONWAY,R.G. 1977,ASTRON. ASTROPHYS. SUPPL. 27,171. 623 PALUMBO,G.G.C.,TANZELLA-NITTI,G. AND VETTOLANI,G. 1983,A CATALOGUE OF RADIAL VELOCITIES OF GALAXIES, GORDON AND BREACH,NEW YORK. 624 PARKER,E.,ELSMORE,B. AND SHAKESHAFT,J. 1966,NATURE 210,22. 625 PARKES,A.G.,PENSTON M.V. 1973,MONTHLY NOTICES ROY. ASTRON. SOC. 162,117. 626 PATTERSON,J.,ROBERTS,W.,SCHWARTZ,D.A.,REMILLARD,R.,MORGAN,E. AND BRADT,H. 1983,BULL. AMER. ASTRON. SOC. 15,636. 627 PAULINY-TOTH,I.I.K. AND KELLERMANN,K.I. 1968,ASTRON. J. 73,953. 628 PAULINY-TOTH,I.I.K. AND KELLERMANN,K.I. 1972,ASTRON. J. 77,797. 629 PAULINY-TOTH,I.I.K.,KELLERMANN,K.I.,DAVIS,M.M.,FOMALONT,E.B. AND SHAFFER, D.B. 1972,ASTRON. J. 77,265. 630 PAULINY-TOTH,I.I.K.,PREUSS,E.,WITZEL,A.,KELLERMANN,K.I.,FOMALONT,E.B. AND DAVIS,M.M. 1973,ASTRON. ASTROPHYS. 27,475. 631 PAULINY-TOTH,I.I.K.,WITZEL,A. AND PREUSS,E. 1974,ASTRON. ASTROPHYS. 35,421. 632 PAULINY-TOTH,I.I.K.,WITZEL,A.,PREUSS,E.,KUHR,H.,KELLERMANN,K.I.,FOMALONT, E.B. AND DAVIS,M.M. 1978,ASTRON. J. 83,451. 633 PEDERSEN,H.,MOTCH,C.,TARENGHI,M.,DANZIGER,J.,PIZZICHINI,G. AND LEWIN,W.H. G. 1983,ASTROPHYS. J. 270,L43. 634 PENFOLD,J.E. 1979,MONTHLY NOTICES ROY. ASTRON. SOC. 186,297. 635 PENSTON,M.V. 1971,ASTROPHYS. J. 170,395. 636 PENSTON,M.V.,FOSBURY,R.A.E.,WARD,M.J. AND WILSON,A.S. 1977,MONTHLY NOTICES ROY. ASTRON. SOC. 180,19. 637 PERLEY,R.A. 1982,ASTRON. J. 87,859. 638 PERRYMAN,M.A.C. 1979,MONTHLY NOTICES ROY. ASTRON. SOC. 187,223. 639 PERRYMAN,M.A.C.,DOWNES,A.J.B. AND LILLY,S.J. 1985,MONTHLY NOTICES ROY. ASTRON. SOC. 216,641. 640 PERRYMAN,M.A.C.,LILLY,S.J.,LONGAIR,M.S. AND DOWNES,A.J.B. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 209,159. 641 PESCH,P. AND SANDULEAK,N. 1983,ASTROPHYS. J. SUPPL. SER. 51,171. 642 PESCH,P. AND SANDULEAK,N. 1986,ASTROPHYS. J. SUPPL. SER. 60,543. 643 PETERSON,B.A. AND BOLTON,J.G. 1972,ASTROPHYS. LETTERS 10,105. 644 PETERSON,B.A. AND BOLTON,J.G. 1972,ASTROPHYS. J. 173,L19. 645 PETERSON,B.A. AND BOLTON,J.G. 1973,ASTROPHYS. LETTERS 13,187. 646 PETERSON,B.A.,BOLTON,J.G. AND SAVAGE,A. 1976,ASTROPHYS. LETTERS 17,137. 647 PETERSON,B.A.,JAUNCEY,D.L.,WRIGHT,A.F. AND CONDON,J.J. 1976,ASTROPHYS. J. 207,L5. 648 PETERSON,B.A.,BOLTON,J.G. AND SHIMMINS,A.J. 1973,ASTROPHYS. LETTERS 15,109. 649 PETERSON,B.A.,SAVAGE,A.,JAUNCEY,D.L. AND WRIGHT,A.E. 1982,ASTROPHYS. J. 260,L27. 650 PETERSON,B.A.,WRIGHT,A.E.,JAUNCEY,D.L. AND CONDON,J.J. 1979,ASTROPHYS. J. 232,400. 651 PETERSON,B.M.,CRAINE,E.R. AND STRITTMATTER,P.A. 1978,PUBL. ASTRON. SOC. PACIFIC 90,386. 652 PETERSON,B.M.,FRICKE,K. AND BIERMANN,P. 1981,PUBL. ASTRON. SOC. PACIFIC 93,281. 653 PETROSIAN,V. 1973,ASTROPHYS. J. 183,359. 654 PETROSIAN,A.R.,SAAKYAN,K.A. AND KHACHIKIAN,E.E. 1977,ASTROPHYSICS 14,36. 655 PETROSIAN,A.R.,SAAKYAN,K.A. AND KHACHIKIAN,E.E. 1979,ASTROPHYSICS 15,250. 656 PHILLIPS,M.M. 1979,ASTROPHYS. J. 227,L121. 657 PHILLIPS,M.M. AND FROGEL,J.A. 1980,ASTROPHYS. J. 235,761. 658 PHILLIPS,R.B. AND MUTEL,R.L. 1980,ASTROPHYS. J. 236,89. 659 PHILLIPS,M.M.,CHARLES,P.A. AND BALDWIN,J.A. 1983,ASTROPHYS. J. 266,485. 660 PHILLIPS,M.M.,FELDMAN,F.R.,MARSHALL,F.E. AND WAMSTECKER,W. 1979,ASTRON. ASTROPHYS. 76,L14. 661 PHILLIPS,M.M.,PAGEL,B.E.J.,EDMUNDS,M.G. AND DIAZ,A. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 210,701. 662 PINEDA,F.,DELVAILLE,J.,GRINDLAY,J.E. AND SCHNOPPER,H.W. 1980,ASTROPHYS. J. 237,414. 663 POCOCK,A.S.,BLADES,J.C.,PENSTON,M.V. AND PETTINI,M. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 210,373. 664 PORCAS,R.W.,TREVERTON,A.M. AND WILKINSON,A. 1974,MONTHLY NOTICES ROY. ASTRON. SOC. 167,41P. 665 PORCAS,R.W.,URRY,C.M.,BROWNE,I.W.A.,COHEN,A.M.,DAINTREE,E.J. AND WALSH,D. 1980,MONTHLY NOTICES ROY. ASTRON. SOC. 191,607. 666 POUNDS,K.A. 1980,PROCEEDINGS 5TH EUROPEAN REGIONAL MEETING IN ASTRONOMY, LIEGE,C5.1. 667 PRAVDO,S.H. AND MARSHALL,F.E. 1984,ASTROPHYS. J. 281,570. 668 PRAVDO,S.H.,NUGENT,J.J.,NOUSEK,J.A.,JENSEN,K.,WILSON,A.S. AND BECKER,R.H. 1981,ASTROPHYS. J. 251,501. 669 PRIETO,A.,WAMSTEKER,W.,DANKS,A.C.,KUNTH,D. AND VITORES,A. 1986,ASTRON. ASTROPHYS. 168,253. 670 PUSCHELL,J.J. 1978,PUBL. ASTRON. SOC. PACIFIC 90,652. 671 PUSCHELL,J.J. AND STEIN,W.A. 1980,ASTROPHYS. J. 237,331. 672 PUSCHELL,J.J.,MOORE,R.,COHEN,R.D.,OWEN,F.N. AND PHILLIPS,A.C. 1986, ASTRON. J. 91,751. 673 PUSCHELL,J.J.,STEIN,W.A.,JONES,T.W.,WARNER,J.W.,OWEN,F.,RUDNICK,L.,ALLER,H. AND HODGE,P. 1979,ASTROPHYS. J. 227,L11. 674 RAFANELLI,P. AND BONOLI,C. 1984,ASTRON. ASTROPHYS. 131,186. 675 RAFANELLI,P. AND SCHULZ,H. 1983,ASTRON. ASTROPHYS. 117,109. 676 REBOUL,H.,FRINGANT,A.M. AND VANDERRIEST,C. 1986,IAU SYMPOSIUM 119,P. 547. 677 REICHERT,G.A.,MASON,K.O.,THORSTENSEN,J.R. AND BOWYER,S. 1982,ASTROPHYS. J. 260,437. 678 REMILLARD,R.A.,BRADT,H.V.,BUCKLEY,D.A.H.,ROBERTS,W.,SCHWARTZ,D.A.,TUOHY, I.R. AND WOOD,K. 1986,ASTROPHYS. J. 301,742. 679 RICHER,H.B. AND OLSON,B.I. 1980,PUBL. ASTRON. SOC. PACIFIC 92,573. 680 RICHSTONE,D.O. AND SCHMIDT,M. 1980,ASTROPHYS. J. 235,361. 681 RICHTER,N. AND SAHAKJAN,K. 1965,MITT. KARL SCHWARZSCHILD OBS. TAUT. 24,5. 682 RICKER,G.R.,CLARK,G.W.,DOXSEY,R.E.,DOWER,R.G.,JERNIGAN,J.G.,DELVAILLE,J.P., MACALPINE,G.M. AND HJELLMING,R.M. 1978,NATURE 271,35. 683 RIEKE,G.H.,CUTRI,R.M.,BLACK,J.H.,KAILEY,W.F.,MCALARY,C.W.,LEBOFSKY,M.J. AND ELSTON,R. 1985,ASTROPHYS. J. 290,116. 684 RIEKE,G.H.,GRASDALEN,G.L.,KINMAN,T.D.,HINTZEN,P.,WILLS,B.J. AND WILLS,D. 1976,NATURE 260,754. 685 RIEKE,G.H.,LEBOFSKY,M.J. AND KINMAN,T.D. 1979,ASTROPHYS. J. 232,L151. 686 RILEY,J.M. 1975,MONTHLY NOTICES ROY. ASTRON. SOC. 170,53. 687 RILEY,J.M. AND POOLEY,G.G. 1975,MEM. ROY. ASTRON. SOC. 80,105. 688 DE ROBERTIS,M.M. AND OSTERBROCK,D.E. 1986,ASTROPHYS. J. 301,98. 689 ROBERTS,D.H.,BURBIDGE,E.M.,BURBIDGE,G.R.,CROWNE,A.H.,JUNKKARINEN,V.T. AND SMITH,H.E. 1978,ASTROPHYS. J. 224,344. 690 ROBERTS,D.H.,GREENFIELD,P.E. AND BURKE,B.F. 1979,SCIENCE 205,894. 691 ROBERTS,J.A.,BOLTON,J.G. AND HARRIS,D.E. 1960,PUBL. ASTRON. SOC. PACIFIC 72,5. 692 ROBERTSON,J.G. AND SHAVER,P.A. 1983,MONTHLY NOTICES ROY. ASTRON. SOC. 204,69P. 693 ROBERTSON,J.G.,SHAVER,P.A.,SURDEJ,J. AND SWINGS,J.P. 1986, MONTHLY NOTICES ROY. ASTRON. SOC. 219,403. 694 ROBINSON,L.B. AND WAMPLER,E.J. 1973,ASTROPHYS. J. 179,L79. 695 ROCHE,P.F.,AITKEN,D.K.,SMITH,C.H. AND JAMES,S.D. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 218,19P. 696 RODGERS,A.W.,PETERSON,B.A. AND HARDING,P. 1978,ASTROPHYS. J. 225,768. 697 ROSE,J.A. AND SEARLE,L. 1982,ASTROPHYS. J. 253,556. 698 RUBIN,V.C. 1974,ASTROPHYS. 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AND WALL,J.V. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 200,1135. 747 SAVAGE,A.,BOLTON,J.G. AND WRIGHT,A.E. 1976,MONTHLY NOTICES ROY. ASTRON. SOC. 175,517. 748 SAVAGE,A.,BOLTON,J.G. AND WRIGHT,A.E. 1977,MONTHLY NOTICES ROY. ASTRON. SOC. 179,135. 749 SAVAGE,A.,BROWNE,I.W.A. AND BOLTON,J.G. 1976,MONTHLY NOTICES ROY. ASTRON. SOC. 177,77P. 750 SAVAGE,A.,CLOWES,R.G.,CANNON,R.D.,CHEUNG,K.,BOKSENBERG,A. AND WALL,J.V. 1985,MONTHLY NOTICES ROY. ASTRON. SOC. 213,485. 751 SAVAGE,A.,TREW,A.S.,CHEN,J. AND WESTON,T. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 207,393. 752 SAVAGE,A.,WRIGHT,A.E. AND BOLTON,J.G. 1977,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 44,1. 753 SCHEUER,P. AND WILLS,D. 1966,ASTROPHYS. J. 143,274. 754 SCHILIZZI,R.T. 1975,MEM.ROY. ASTRON. SOC. 79,75. 755 SCHMIDT,M. 1963,NATURE 197,1040. 756 SCHMIDT,M. 1965,ASTROPHYS. J. 141,1. 757 SCHMIDT,M. 1965,ASTROPHYS. J. 141,1295. 758 SCHMIDT,M. 1966,ASTROPHYS. J. 144,443. 759 SCHMIDT,M. 1968,ASTROPHYS. J. 151,393. 760 SCHMIDT,M. 1974,ASTROPHYS. 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AND PASTORIZA,M. 1965,PUBL. ASTRON SOC. PACIFIC 77,287. 775 SHAFFER,D.B. 1978,ASTRON. J. 83,209. 776 SHAFFER,D.B. AND GREEN,R.F. 1978,PUBL. ASTRON. SOC. PACIFIC 90,22. 777 SHANKS,T.,FONG,R. AND BOYLE,B.J. 1983,NATURE 303,156. 778 SHAVER,P.A. AND ROBERTSON,J.G. 1983,ASTROPHYS. J. 268,L57. 779 SHAVER,P.A. AND ROBERTSON,J.G. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 212,15P. 780 SHAVER,P.A.,BOKSENBERG,A. AND ROBERTSON,J.G. 1982,ASTROPHYS. J. 261,L7. 781 SHIMMINS,A.J. 1971,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 21. 782 SHIMMINS,A.J. AND BOLTON,J.G. 1972 AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 23. 783 SHIMMINS,A.J. AND BOLTON,J.G. 1972,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 26,1. 784 SHIMMINS,A.J. AND BOLTON,J.G. 1974,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 32. 785 SHIMMINS,A.J.,BOLTON,J.G.,PETERSON,B.A. AND WALL,J.V. 1971, ASTROPHYS. LETTERS 8,139. 786 SHIMMINS,A.J.,BOLTON,J.G. AND WALL,J.V. 1975,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 34,63. 787 SHIMMINS,A.J.,SEARLE,L.,ANDREW,B.H. 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ELVIS,M.,FABBIANO,G.,FEIGELSON,E.,GIAC- CONI,R.,HENRY,J.P.,PYE,J.P.,SOLTAN,A. AND ZAMORANI,G. 1979,ASTROPHYS. J. 849 234,L9. 850 TAPIA,S. AND TURNSHEK,D.A. 1982,BULL. AMER. ASTRON. SOC. 14,577. 851 TAPIA,S.,CRAINE,E.R.,GEARHART,M.R.,PACHT,E. AND KRAUS,J. 1977,ASTROPHYS. J. 215,L71. 852 TAPIA,S.,CRAINE,E.R. AND JOHNSON,K. 1976,ASTROPHYS. J. 203,291. 853 THUAN,T.X.,OKE,J.B. AND GUNN,J.E. 1975,ASTROPHYS. J. 201,45. 854 TIFFT,W.G.,KIRSHNER,R.P.,GREGORY,S.A. AND MOODY,J.W. 1986,ASTROPHYS. J. 310,75. 855 TOHLINE,J.E. AND OSTERBROCK,D.E. 1976,ASTROPHYS. J. 210,L117. 856 TOVMASSIAN,H.M.,SHERWOOD,W.A.,SHERWOOD,V.E.,SCHULTZ,G.V.,SALTER,C.J. AND MATTHEWS,H.E. 1984,ASTRON. ASTROPHYS. SUPPL. 58,317. 857 TREW,A.S.,CLUBE,S.V.M.,SAVAGE,A. AND CLOWES,R.G. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 200,785. 858 TRITTON,K.P. 1971,MONTHLY NOTICES ROY. ASTRON. SOC. 155,1P. 859 TRITTON,K.P.,HENBEST,S.N. AND PENSTON M.V. 1973,MONTHLY NOTICES ROY. ASTRON. SOC. 162,31P. 860 TSVETANOV,Z.I. 1981,SOVIET AJ LETTERS 7,42. 861 TURNER,E.L.,SCHNEIDER,D.P.,BURKE,B.F.,HEWITT,J.N.,LANGSTON,G.I.,GUNN,J.E., LAWRENCE,C.R. AND SCHMIDT,M. 1986,NATURE 321,142. 862 TURNSHEK,D.A.,WEYMANN,R.J.,CARSWELL,R.F. AND SMITH,M.G. 1984,ASTROPHYS. J. 277,51. 863 TURNSHEK,D.A.,WEYMANN,R.J.,LIEBERT,J.W.,WILLIAMS,R.E. AND STRITTMATTER,P.A. 1980,ASTROPHYS. J. 238,488. 864 TYTLER,D. AND BROWNE,I. 1985,ASTRON. J. 90,1676. 865 TZANETAKIS,A.,SPENCER,R.E.,MASSON,C.R. AND BALDWIN,J.E. 1978,MONTHLY NOTICES ROY. ASTRON. SOC. 185,63P. 866 ULMER,M.P.,BROWN,R.L.,SCHWARTZ,D.A.,PATTERSON,J. AND CRUDDACE,R.G. 1983, ASTROPHYS. J. 270,L1. 867 ULRICH,M.H. 1971,ASTROPHYS. J. 163,441. 868 ULRICH,M.H. 1972,ASTROPHYS. J. 178,113. 869 ULRICH,M.H. 1973,ASTROPHYS. LETTERS 14,89. 870 ULRICH,M.H. 1976,ASTROPHYS. J. 206,364. 871 ULRICH,M.H. 1978,ASTROPHYS. J. 222,L3. 872 ULRICH,M.H. AND PERRYMAN,M.A.C. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 220,429. 873 ULRICH,M.H.,KINMAN,T.D.,LYNDS,C.R.,RIEKE,G.H. AND EKERS,R.D. 1975,ASTRO- PHYS. J. 198,261. 874 ULVESTAD,J.S. AND WILSON,A.S. 1983,ASTROPHYS. J. 264,L7. 875 ULVESTAD,J.S. AND WILSON,A.S. 1984,ASTROPHYS. J. 278,544. 876 ULVESTAD,J.S. AND WILSON,A.S. 1984,ASTROPHYS. J. 285,439. 877 UOMOTO,A. 1984,ASTROPHYS. J. 284,497. 878 USHER,P.D. 1978,ASTROPHYS. J. 222,40. 879 USHER,P.D. 1981,ASTROPHYS. J. SUPPL. SER. 46,117. 880 USHER,P.D. AND MITCHELL,.K.J. 1982,ASTROPHYS. J. SUPPL. SER. 49,27. 881 USHER,P.D.,GREEN,R.F.,HUANG,K.L. AND WARNOCK,A. 1983,PROC. 24TH LIEGE INT. ASTROPHYS. COLL. P.245. 882 USHER,P.D.,MATTSON,D. AND WARNOCK,A. 1982,ASTROPHYS. J. SUPPL. SER. 48,51. 883 USHER,P.D.,WARNOCK,A. AND GREEN,R.F. 1983,ASTROPHYS. J. 269,73. 884 VALENTIJN,E.A.,PEROLA,G.C. AND JAFFE,W.J. 1977,ASTRON. ASTROPHYS. SUPPL. 28,333. 885 VANDERRIEST,C. AND LELIEVRE,G. 1977,ASTRON. ASTROPHYS. 56,71. 886 VAUCHER,B.G.,KREIDL,T.J.,THOMAS,N.G. AND HOAG,A.A. 1982,ASTROPHYS. J. 261,18. 887 DE VAUCOULEURS,A. AND DE VAUCOULEURS,G. 1967,ASTRON. J. 72,730. 888 DE VAUCOULEURS,G. 1961,ASTROPHYS. J. SUPPL SER. 5,233. 889 DE VAUCOULEURS,G. 1964,ASTROPHYS. J. 139,899. 890 DE VAUCOULEURS,G. AND DE VAUCOULEURS,A. 1968,ASTRON. J. 73,858. 891 DE VAUCOULEURS,G. AND DE VAUCOULEURS,A. 1975,ASTROPHYS. J. 197,L1. 892 DE VAUCOULEURS,G. AND DE VAUCOULEURS,A. 1972,MEM. ROY. ASTRON. SOC. 77,1. 893 DE VAUCOULEURS,G.,DE VAUCOULEURS,A. AND CORWIN,H.G. 1976,SECOND REFERENCE CATALOGUE OF BRIGHT GALAXIES. 894 DE VAUCOULEURS,G.,DE VAUCOULEURS,A. AND CORWIN,H.G. 1978,ASTRON. J. 83,1331. 895 VEILLEUX,S. AND OSTERBROCK,D.E. 1986,'SPECTRAL CLASSIFICATION OF EMISSION LINE GALAXIES'. 896 VERON,M.P. 1971,ASTRON. ASTROPHYS. 11,1. 897 VERON,M.P. 1981,ASTRON. ASTROPHYS. 100,12. 898 VERON,M.P. AND VERON,P. 1977,ASTRON. ASTROPHYS. SUPPL. 29,149. 899 VERON,M.P. AND VERON,P. 1984,UNPUBLISHED. 900 VERON,M.P.,VERON,P.,ADGIE,R.L. AND GENT,H. 1976,ASTRON. ASTROPHYS. 47,401. 901 VERON,M.P.,VERON,P. AND ZUIDERWIJK,E.J. 1981,ASTRON. ASTROPHYS. 98,34. 902 VERON-CETTY,M.P. 1984,ASTRON. ASTROPHYS. SUPPL. 58,665. 903 VERON-CETTY,M.P. AND VERON,P. 1986,ASTRON. ASTROPHYS. SUPPL. 65,241. 904 VERON-CETTY,M.P. AND VERON,P. 1986,ASTRON. ASTROPHYS. SUPPL. 66,335. 905 VERON-CETTY,M.P.,VERON,P. AND TARENGHI,M. 1982,ASTRON. ASTROPHYS. 113,46. 906 VERON,P. 1966,ASTROPHYS. J. 144,861. 907 VERON,P. 1978,NATURE 272,430. 908 VERON,P.,LINDBLAD,P.O.,ZUIDERWIJK,E.J.,VERON,M.P. AND ADAM,G. 1980, ASRON. ASTROPHYS. 87,245. 909 VERON,P.,VERON,M.P.,BERGERON,J. AND ZUIDERWIJK,E.J. 1981,ASTRON. ASTROPHYS. 97,71. 910 VERON,P.,VERON,M.P.,PAULINY-TOTH,I.I.K. AND WITZEL,A. 1980,UNPUBLISHED. 911 VORONTSOV-VELYAMINOV,B.A. 1959,ATLAS AND CATALOGUE OF INTERACTING GALAXIES. PART I (MOSCOW, MOSCOW STATE UNIVERSITY). 912 VORONTSOV-VELYAMINOV,B.A. 1977,ASTRON. ASTROPHYS. SUPPL. 28,1. 913 VRBA,F.J. AND TAPIA,S. 1979,ASTRON. J. 84,470. 914 WADE,C.M. 1968,ASTRON. J. 73,876. 915 WALKER,M.F. AND CHINCARINI,G. 1967,ASTROPHYS. J. 147,416. 916 WALL,J.V. 1971,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 20,1. 917 WALL,J.V. 1972,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 24. 918 WALL,J.V. AND CANNON,R.D. 1973,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 31. 919 WALL,J.V. AND COLE,D.J. 1973,AUSTRALIAN J. PHYS. 26,881. 920 WALL,J.V.,DANZIGER,I.J.,PETTINI,M.,WARWICK,R.S. AND WAMSTEKER,W. 1986, MONTHLY NOTICES ROY. ASTRON. SOC. 219,23P. 921 WALL,J.V.,SHIMMINS,A.J. AND BOLTON,J.G. 1975,AUSTRALIAN J. PHYS. ASTRO- PHYS. SUPPL. 34,55. 922 WALL,J.V.,SHIMMINS,A.J. AND MERKELIJN,J.K. 1971,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 19. 923 WALL,J.V.,WRIGHT,A.E. AND BOLTON,J.G. 1976,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 39,1. 924 WALSH,D. AND CARSWELL,R.F. 1982,MONTHLY NOTICES ROY. ASTRON. SOC. 200,191. 925 WALSH,D.,BECKERS,J.M.,CARSWELL,R.F. AND WEYMANN,R.J. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 211,105. 926 WALSH,D.,CARSWELL,R.F. AND WEYMANN,R.J. 1979,NATURE 279,381. 927 WALSH,D.,WILLS,B.J. AND WILLS,D. 1979,MONTHLY NOTICES ROY. ASTRON. SOC. 189,667. 928 WALTER,H.G. AND WEST,R.M. 1980,ASTRON. ASTROPHYS. 86,1. 929 WAMPLER,E.J. 1967,PUBL. ASTRON. SOC. PACIFIC 79,210. 930 WAMPLER,E.J. 1985,ASTROPHYS. J. 296,416. 931 WAMPLER,E.J. AND PONZ,D. 1985,ASTROPHYS. J. 298,448. 932 WAMPLER,E.J.,ROBINSON,L.B.,BALDWIN,J.A. AND BURBIDGE,E.M. 1973,NATURE 243,336. 933 WAMPLER,E.J.,BALDWIN,J.A.,BURKE,W.L.,ROBINSON,L.B. AND HAZARD,C. 1973, NATURE 246,203. 934 WAMPLER,E.J.,GASKELL,C.M.,BURKE,W.L. AND BALDWIN,J.A. 1984,ASTROPHYS. J. 276,403. 935 WAMSTEKER,W.,PRIETO,A.,VITORES,A.,SCHUSTER,H.E.,DANKS,A.C.,GONZALEZ,R. AND RODRIGUEZ,G. 1985,ASTRON. ASTROPHYS. SUPPL. 62,255. 936 WARD,M.J. AND WILSON,A.S. 1978,ASTRON. ASTROPHYS. 70,L79. 937 WARD,M.J.,WILSON,A.S.,DISNEY,M.J.,ELVIS,M. AND MACCACARO,T. 1977,ASTRON. ASTROPHYS. 59,L19. 938 WARD,M.J.,WILSON,A.S.,PENSTON,M.V.,TRITTON,K.P.,ELVIS,M. AND MACCACARO,T. 1978,ASTROPHYS. J. 223,788. 939 WARDLE,J.F.C. AND KRONBERG,P.P. 1974,ASTROPHYS. J. 194,249. 940 WARDLE,J.F.C.,MOORE,R.L. AND ANGEL,J.R.P. 1984,ASTROPHYS. J. 279,93. 941 WARNER,J.W.,ASSOUSA,G.E.,BALICK,B. AND CRAINE,E.R. 1975,PUBL. ASTRON. SOC. PACIFIC 87,103. 942 WARNER,P.J.,RILEY,J.M.,EALES,S.A.,DOWNES,A.J.B. AND BALDWIN,J.E. 1983, MONTHLY NOTICES ROY. ASTRON. SOC. 204,1279. 943 WARREN,S.J.,HEWETT,P.C.,IRWIN,M.J.,MCMAHON,R.G.,BRIDGELAND,M.T.,BUNCLARK, P.S. AND KIBBLEWHITE,E.J. 1987,NATURE 325,131. 944 WASILEWSKI,A.J. 1981,PUBL. ASTRON. SOC. PACIFIC 93,560. 945 WASILEWSKI,A.J. 1983,ASTROPHYS. J. 272,68. 946 WEBBER,J.C. AND WILLIS,A.G. 1972,ASTRON. J. 77,625. 947 WEBSTER,A.S. AND RYLE,M. 1976,MONTHLY NOTICES ROY. ASTRON. SOC. 175,95. 948 WEEDMAN,D.W. 1970,ASTROPHYS. J. 159,405. 949 WEEDMAN,D.W. 1971,ASTROPHYS. LETTERS 9,49. 950 WEEDMAN,D.W. 1972,ASTROPHYS. J. 171,5. 951 WEEDMAN,D.W. 1973,ASTROPHYS. J. 183,29. 952 WEEDMAN,D.W. 1977,ANN. REV. ASTRON. ASTROPHYS. 15,69. 953 WEEDMAN,D.W. 1985,ASTROPHYS. J. SUPPL. SER. 57,523. 954 WEEDMAN,D.W. AND KHACHIKIAN,E.E. 1969,ASTROPHYSICS 5,51. 955 WEEDMAN,D.W. AND KHACHIKIAN,E.E. 1969,ASTROPHYSICS 5,113. 956 WEEDMAN,D.W.,GREEN,R.F. AND HECKMAN,T.M. 1982,ASTROPHYS. J. 255,L5. 957 WEGNER,G. 1979,ASTROPHYS. SPACE SCI. 60,15. 958 WEHINGER,P.A. AND WYCKOFF,S. 1977,MONTHLY NOTICES ROY. ASTRON. SOC. 181,211. 959 WEILER,K.W. AND JOHNSTON,K.J. 1980,MONTHLY NOTICES ROY. ASTRON. SOC. 190,269. 960 WEISTROP,D. 1973,ASTRON. ASTROPHYS. 23,215. 961 WEISTROP,D.,SHAFFER,D.B.,HINTZEN,P. AND ROMANISHIN,W. 1985,ASTROPHYS. J. 292,614. 962 WEST,R.M. 1976,ASTRON. ASTROPHYS. 46,327. 963 WEST,R.M.,BORCHKHADZE,T.M.,BREYSACHER,J.,LAUTSEN,S. AND SCHUSTER,H.E. 1978, ASTRON. ASTROPHYS. SUPPL. 31,55. 964 WEST,R.M.,DANKS,A.C. AND ALCAINO,G. 1978,ASTRON. ASTROPHYS. 62,L13. 965 WEST,R.M.,DANKS,A.C. AND ALCAINO,G. 1978,ASTRON. ASTROPHYS. 65,151. 966 WEST,R.M.,GROSBOL,P. AND STERKEN,C. 1980,'THE PECULIAR SEYFERT GALAXY ESO 012-G21'.ESO PREPRINT N101. 967 WEST,R.M.,SURDEJ,J.,SCHUSTER,H.E.,MULLER,A.B.,LAUTSEN,S. AND BORCHKHADZE, T.M. 1981,ASTRON. ASTROPHYS. SUPPL. 46,57. 968 WESTERLUND,B.E. AND SMITH,L. 1966,AUSTRALIAN J.PHYS. 19,181. 969 WESTERLUND,B. AND WALL,J. 1969,ASTRON. J. 74,335. 970 WEYMANN,R.J.,LATHAM,D.,ANGEL,J.P.R.,GREEN,R.F.,LIEBERT,J.W.,TURNSHEK,D.A., TURNSHEK,D.E. AND TYSON,J.A. 1980,NATURE 285,641. 971 WHITE,G.L.,MURDOCH,H.S. AND HUNSTEAD.R.W. 1980,MONTHLY NOTICES ROY. ASTRON. SOC. 192,545. 972 WHITE,R.A.,SARAZIN,C.L.,QUINTANA,H. AND JAFFE,W.J. 1981, ASTROPHYS. J. 245,L1. 973 WHITEOAK,J.B. 1970,ASTROPHYS. LETTERS 5,29. 974 WILKES,B.J. 1984,MONTHLY NOTICES ROY. ASTRON. SOC. 207,73. 975 WILKES,B.J. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 218,331. 976 WILKES,B.J.,WRIGHT,A.E.,JAUNCEY,D.L. AND PETERSON,B.A. 1983,PROC. ASTRON. SOC. AUSTRALIA 5,2. 977 WILLIS,A.G. AND MILEY,G.K. 1979,ASTRON. ASTROPHYS. SUPPL. 37,397. 978 WILLIS,A.G. AND DE RUITER,H.R. 1977,ASTRON. ASTROPHYS. SUPPL. 29,103. 979 WILLS,B.J. 1974,NATURE 251,691. 980 WILLS,B.J. 1975,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 38,1. 981 WILLS,B.J. 1976,ASTRON. J. 81,1031. 982 WILLS,B.J. AND BROWNE,I.W.A. 1986,ASTROPHYS. J. 302,56. 983 WILLS,B.J. AND WILLS,D. 1974,ASTROPHYS. J. 190,L97. 984 WILLS,B.J. AND WILLS,D. 1979,ASTROPHYS. J. SUPPL. SER. 41,689. 985 WILLS,B.J.,NETZER,H.,UOMOTO,A.K. AND WILLS,D. 1980,ASTROPHYS. J. 237,319. 986 WILLS,B.J.,NETZER,H. AND WILLS,D. 1985,ASTROPHYS. J. 288,94. 987 WILLS,B.J.,WILLS,D. AND DOUGLAS,J.N. 1973,ASTRON. J. 78,521. 988 WILLS,D. 1966,OBSERVATORY 86,245. 989 WILLS,D. 1967,MONTHLY NOTICES ROY. ASTRON. SOC. 135,339. 990 WILLS,D. 1968,ASTROPHYS. LETTERS 2,247. 991 WILLS,D. AND BOLTON,J. 1969,AUSTRALIAN J. PHYS. 22,775. 992 WILLS,D. AND LYNDS,R. 1972,ASTROPHYS. LETTERS 11,189. 993 WILLS,D. AND LYNDS,R. 1978,ASTROPHYS. J. SUPPL. SER. 36,317. 994 WILLS,D. AND WILLS,B.J. 1974,ASTROPHYS. J. 190,271. 995 WILLS,D. AND WILLS,B.J. 1976,ASTROPHYS. J. SUPPL. SER. 31,143. 996 WILLS,D. AND WILLS,B.J. 1982,ASTRON. J. 87,252. 997 WILLS,D. AND WILLS,B.J. 1981,NATURE 289,384. 998 WILLS,D. AND WILLS,B.J. 1985,PRIVATE COMMUNICATION. 999 WILSON,A.S. AND WILLIS,A.G. 1980,ASTROPHYS. J. 240,429. 1000 WILSON,A.S.,PENSTON,M.V.,FOSBURY,R.A.E. AND BOKSENBERG,A. 1976,MONTHLY NOTICES ROY. ASTRON. SOC 177,673. 1001 WILSON,A.S.,WARD,M.J.,AXON,D.J.,ELVIS,M. AND MEURS,E.J.A. 1979,MONTHLY NOTICES ROY. ASTRON. SOC. 187,109. 1002 WILSON,A.S.,WOOD,K.,WARD,M.J.,GRIFFITHS,R.E. AND MUSHOTZSKY,R.F. 1981, ASTRON. J. 86,1289. 1003 WINDHORST,R.A.,HEERDE,VAN,G.M. AND KATGERT,P. 1984,ASTRON. ASTROPHYS. SUPPL. 58,1. 1004 WINDRAM,M. AND KENDERDINE,S. 1969,MONTHLY NOTICES ROY. ASTRON. SOC. 146,265. 1005 WING,R.F. 1973,ASTRON. J. 78,684. 1006 WISNIEWSKI,W.Z.,SITKO,M.L. AND SITKO,A.K. 1986,MONTHLY NOTICES ROY. ASTRON. SOC. 219,299. 1007 WITZEL,A.,VERON,P. AND VERON,M.P. 1971,ASTRON. ASTROPHYS. 11,171. 1008 WLERICK,G.,LELIEVRE,G. AND VERON,P. 1971,ASTRON. ASTROPHYS. 11,142. 1009 WOLFE,A.M.,TURNSHEK,D.A.,SMITH,H.E. AND COHEN,R.D. 1986,ASTROPHYS. J. SUPPL. SER. 61,249. 1010 WOLSTENCROFT,R.D.,KU,W.H.M.,ARP,H.C. AND SCARROT,S.M. 1983, MONTHLY NOTICES ROY. ASTRON. SOC. 205,67. 1011 WORRALL,D.M.,RODRIGUEZ-ESPINOZA,J.M.,WISNIEWSKI,W.Z.,MILLER,H.R.,BRUHWEI- LER,F.C.,ALLER,M.F. AND ALLER,H.D. 1986,ASTROPHYS. J. 303,589. 1012 WRIGHT,A.E. 1974,MONTHLY NOTICES ROY. ASTRON. SOC. 167,251. 1013 WRIGHT,A.E. 1974,MONTHLY NOTICES ROY. ASTRON. SOC. 167,273. 1014 WRIGHT,A.E.,ABLES,J.G. AND ALLEN,D.A. 1983,MONTHLY NOTICES ROY. ASTRON. SOC. 205,793. 1015 WRIGHT,A.E.,JAUNCEY,D.L.,PETERSON,B.A. AND CONDON,J.J. 1977,ASTROPHYS. J. 211,L115. 1016 WRIGHT,A.E.,JAUNCEY,D.L.,BOLTON,J.G. AND SAVAGE,A. 1982,AUSTRALIAN J. PHYS. 35,177. 1017 WRIGHT,A.E.,PETERSON,B.A.,JAUNCEY,D.L. AND CONDON,J.J. 1979,ASTROPHYS. J. 229,73. 1018 WRIGHT,A.E.,SAVAGE,A. AND BOLTON,J.G. 1977,AUSTRALIAN J. PHYS. ASTROPHYS. SUPPL. 41,1. 1019 WYNDHAM,J. 1965,ASTRON. J. 70,384. 1020 WYNDHAM,J. 1966,ASTROPHYS. J. 144,459. 1021 YAOQUAN,C. 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