1. L. D. Landau and E. M. Lifshits, Mechanics of Continuous Media, Gostekhizdat, Moscow (1954).
2. I. I. Novikov, ?Adiabat index of saturated and humid vapor,? Dokl. AN SSSR, New Series,59, No. 8 (1948)
3. M. D. Weisman, Thermodynamics of Vapor-Liquid Fluxes, [in Russian], Énergiya, Leningrad (1967).
4. W. G. England, J. C. Firey, and O. E. Trapp, ?Additional velocity of sound measurements in wet steam,? Industr. Engin. Chem. Process Design and Development,5, No. 2 (1966).
5. N. I. Semenov and S. I. Kosterin, ?Results of investigation of sound speed in moving gas-liquid mixtures,? Teploénergetika, No. 6 (1964).