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|Additional Physical Format:||Online version:
Langley Aeronautical Laboratory.
Recent research on the determination of natural modes and frequencies of aircraft wing structures.
Washington, National Advisory Committee for Aeronautics 
|All Authors / Contributors:||
John M Hedgepeth; Langley Aeronautical Laboratory.; United States. National Advisory Committee for Aeronautics. Advisory Group for Aeronautical Research and Development.
|Description:||21 pages illustrations, diagrams, tables 27 cm|
|Responsibility:||by John M. Hedgepeth, head, Dynamics and Aeroelasticity Section. Presented to Structures and Materials Panel of Advisory Group for Aeronautical Research and Development.|