By Friedmann P. P.   Straub F.   in Journal of the American Helicopter Society

ISSN:2161-6027|25|1|36-44

AHS International‎(1980)‎

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By Straub F. K.   Sangha K. B.   Panda B.   in Journal of the American Helicopter Society

ISSN:2161-6027|39|2|56-68

AHS International‎(1994)‎

Access to resources Favorite 6.4665065