NASA SP (series). 180. Second conference on sonic boom research, proceedings of conference 16095 180. held at Washington, D.C, May 9 and 10, 1968, on research on generation and propagation of sonic booms, and cocbalred by W. D. Hayes, Princeton University, and A. R. Seebass, Cornell University [papers, with lists of references]; edited by Ira R. Schwartz.

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