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2Result(s)for '"Betzina Mark D."'
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By Smith Charles A. Betzina Mark D. in Journal of the American Helicopter Society
ISSN:2161-6027|31|1|29-36
AHS International(1986)
Access to resources Favorite 14.457644
By Felker Fort F. Maisel Martin D. Betzina Mark D. in Journal of the American Helicopter Society
ISSN:2161-6027|31|2|10-18
AHS International(1986)
Access to resources Favorite 10.822503