By Szustak Leonard S.   Jenney David S.   in Journal of the American Helicopter Society

ISSN:2161-6027|16|3|11-22

AHS International‎(1971)‎

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By Jenney David S.   Olson John H.   Landgrebe Anton John   in Journal of the American Helicopter Society

ISSN:2161-6027|13|2|1-26

AHS International‎(1968)‎

Access to resources Favorite 9.76601