2002, I 9, UFO History, A Crisis Looms - ed. Barry Greenwood.pdf

1966, Science, V 154, UFOs Merit Scientific Study - J. Allen Hynek

1951, The Need for Basic Sky Studies - J. Allen Hynek

1960, Research in Space Science, Special Report N 3 - J. Allen Hynek

1953, Journal of Optical Society of America, V 43, I 4, Unusual Aerial Phenomena - J.a. Hynek

1999, I 5, UFOs on Mt. Everest in 1933 - ed. Barry Greenwood.pdf

p2lb-102.pdf

2004, I 11, An Observation on the Ramey Memo - ed. Barry Greenwood.pdf

David_Talbott_Elektricno_sunce.pdf

2006, I 12, UFO Feature Film in 1914 - ed. Barry Greenwood.pdf

The_Alien_Digest.pdf