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[2] A. B. Canbel, Β. H. Jennings; Gas Dynamics, p. 290～310,New York.

[4] M. Born, Ε Wolf; Principles of Optics, pp. 312～314, New York (1959).

[5] D. S. Dosanjh (ed) ;Modern Optical Methods in gas dynamics seseach, New York (1971)

[6] F. J. Weinberg; Optics of Flames, Chaptess 4～8, New York (1963)