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Theoretical parametric study of the relative advantages of winglets and wing-tip extensions

Harry H. HeysonGregory D. RiebeCynthia L. Fulton

出版	National Aeronautics and Space Administration, Scientific and Technical Information Office, 1977
URL	http://books.google.com.hk/books?id=Qzu5ej5UsmwC&hl=&source=gbs_api