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Biplanes & Us: What puts you in touch with aviation history and is really, really fun?
unknown SMITHSONIAN INSTITUTION 2011 p.42-47
1986: A year that can only be called interesting
Hoversten, P. SMITHSONIAN INSTITUTION 2011 p.52-58
The Power of 25: Think of it as a crash course in aeronautical trivia
unknown SMITHSONIAN INSTITUTION 2011 p.64-69