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2. V. V. Krasnikov and V. A. Danilov, Inzh.-Fiz. Zhur.,11, No. 4 (1966).
3. G. K. Filonenko and V. K. Kossek, in: Heat and Mass Transfer [in Russian], Vol. 5, Énergiya, Moscow-Leningrad (1966).
4. N. E. Gorobtsova, Inzh.-Fiz. Zhur.,17, No. 2 (1969).