1. K. D. Guseinov and N. M. Bairamov, Neft' Gaz, No. 3, 39?44 (1985).
2. Kh. M. Madzhidov and M. M. Safarov, in: Physics of Liquids and Solutions [in Russian], Dushanbe (1982), pp. 4?11.
3. M. M. Safarov, Kh. M. Madzhidov, A. V. Kartavchenko, and M. A. Zaripova, in: Collection of Scientific Papers [in Russian], Kurgan-Tyube (1992), p. 144.