By Sternfeld Harry   in Journal of the American Helicopter Society

ISSN:2161-6027|5|1|2-8

AHS International‎(1960)‎

Access to resources Favorite 19.524885

By Ziegenbein Perry R   Sternfeld Harry   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|1996|1|101-106

Institute of Noise Control Engineering‎(1996)‎

Access to resources Favorite 13.667419

By Sternfeld Harry   Miller Laymon N.   Beranek Leo L.   in Journal of the American Helicopter Society

ISSN:2161-6027|2|4|21-28

AHS International‎(1957)‎

Access to resources Favorite 9.762443