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2. V. N. Sokolov, Heating Calculations for Metal in Metallurgical Furnaces [in Russian], Metallurgizdat, 1956.
3. Yu. D. Sokolov, DAN USSR, No. 2, Kiev, 1955.
4. Yu. D. Sokolov, UMZh,9, No. 1, 1957.
5. G. P. Ivantsov, Heating of Metal [in Russian], Metallurgizdat, 1948.