1. E. M. Khabakhpasheva, B. V. Perepelitsa, E. S. Mikhailova, V. V. Orlov, V. M. Karsten, and G. I. Efimenko, Heat and Mass Transfer [in Russian], Vol. 1, Énergiya, Moscow (1968), p. 165.
2. E. M. Khabakhpasheva and B. V. Perepelitsa, Inzh.-Fiz. Zh.,14, No. 4 (1968).