By Sopher Robert   Duh James E.   in Journal of the American Helicopter Society

ISSN:2161-6027|32|4|54-62

AHS International‎(1987)‎

Access to resources Favorite 11.217184

By Sopher Robert   Cassarino Sebastian J.   in Journal of the American Helicopter Society

ISSN:2161-6027|33|4|15-27

AHS International‎(1988)‎

Access to resources Favorite 11.217184

By Sopher Robert   Hallock Daniel W.   in Journal of the American Helicopter Society

ISSN:2161-6027|31|1|43-51

AHS International‎(1986)‎

Access to resources Favorite 11.217184

By Sopher Robert   Studwell R. E.   Cassarino S.   Kottapalli S. B. R.   in Journal of the American Helicopter Society

ISSN:2161-6027|28|4|14-21

AHS International‎(1983)‎

Access to resources Favorite 6.471689