Project 1947: An Inquiry into the Beginning of the UFO Era. : From CUFOS, discusses early UFO sightings, and newspaper articles by Jan L. Aldrich
The Scientific Context of the UFO/Abduction Phenomenon : An article about abduction by Don C. Donderi.
If you have a paper relating to UFOs/Aliens/Crop Circles, just e-mail it to me, and I will be happy to publish it here!