At the American Meteorological Society’s 14th Radar Conference on 17th-20th November 1970, James E McDonald gave a paper on “Meteorological Factors in Unidentified Radar Returns”.
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Web Resources
Available online at:
http://www.project1947.com/shg/articles/metfac70.html
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Book References
Discussed by Druffel, Ann in her “Firestorm : Dr James E McDonald's Fight for UFO Science” (2003) (available on Amazon USA and on Amazon UK) at page 483 (in Chapter 17) of the Wild Flower Press softcover edition.
Other Material