By Stroub Robert H.   Rabbott John P.   Niebanck Charles F.   in Journal of the American Helicopter Society

ISSN:2161-6027|24|4|28-35

AHS International‎(1979)‎

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By Stroub Robert H.   Young Larry A.   Keys Charles N.   Cawthorne Matthew H.   in Journal of the American Helicopter Society

ISSN:2161-6027|31|3|19-26

AHS International‎(1986)‎

Access to resources Favorite 9.423988