Литература

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2. Preston, Proc. Roy. Soc., July, 1939.

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4. Raman and Nilakantan, Nature, 46, 523, 1940; 145, 860, 1940;

Proc. Ind. Acad., 11, 398, 1940; 12, 141, 1940; Raman and Nath, Proc. Ind. Acad., 12, 83, 1940.

5. Bragg, Nature, 146, 509, 1940.