1. R. I. Nigmatulin, Dynamics of Multiphase Media [in Russian], Part II, Nauka, Moscow (1987).
2. V. E. Nakoryakov, B. G. Pokusaev, and I. R. Shreiber, Wave Propagation in a Gas-Liquid Medium [in Russian], Inst. of Heat Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (1983).
3. V. K. Kedrinskii, ?Propagation of disturbances in a liquid containing gas bubbles,? Prikl. Mekh. Tekh. Fiz., No. 4 (1968).
4. V. Sh. Shagapov, ?Propagation of small disturbances in liquids with bubbles,? Prikl. Mekh. Tekh. Fiz., No. 1 (1977).
5. V. Sh. Shagapov, ?Structure of shock waves in a polydispersed mixture of gas bubbles in a liquid,? Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 6 (1976).