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Doppler global velocimetry at NASA Glenn Research Center system discussion and results

Lant, Christian T.
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Hanover, MD : Available from NASA Center for Aerospace Information ; Springfield, VA : National Technical Information Service [distributor, 2003] 2003

The effects of structural flap-lag and pitch-lag coupling on soft inplane hingeless rotor stability

Bousman, William G.
Washington, D.C. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; [Springfield, Va. : For sale by the National Technical Information Service], 1990. 1990