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An investigation at static conditions of nonaxisymmetric nozzle thrust reverser port geometry includ

Arbiter, Dorothy G.
Hampton, Va. : Vigyan Research Associates, Inc. : National Aeronautics and Space Administration, Langley Research Center, [1985] 1985

An investigation of adaptive controllers for helicopter vibration and the development of a new dual

Mookerjee, Purusottan.
Storrs, CT : University of Connecticut ; Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center, [1986] 1986