By Bernhard Andreas P. F.   Wong Jonathan   in Journal of the American Helicopter Society

ISSN:2161-6027|50|1|65-81

AHS International‎(2005)‎

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By Bernhard Andreas P. F.   Chopra Inderjit   in Journal of the American Helicopter Society

ISSN:2161-6027|44|1|3-15

AHS International‎(1999)‎

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