By Leverton John W.   in Journal of the American Helicopter Society

ISSN:2161-6027|19|2|41-44

AHS International‎(1974)‎

Access to resources Favorite 18.169298

By Leverton John W.   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|2004|1|557-565

Institute of Noise Control Engineering‎(2004)‎

Access to resources Favorite 18.169298