1. G. V. Kolabin, Yu. V. Dyad’kin, and V. Zh. Arens, Thermophysical Aspects of Development of Underground Resources (Nedra, Leningrad, 1988) [in Russian].
2. G. G. Tsypkin and L. Brevdo, Trans. Porous Media 37, 129 (1999).
3. S. Chandrasekhar, Hydrodynamic and Hydromagnetic Stability (Oxford Univ. Press, New York, 1967).
4. G. Schubert and J. M. Straus, J. Geophys. Res. B 85, 6505 (1980).
5. B. V. Shabat, Introduction to Complex Analysis (Nauka, Moscow, 1985), Part 1 [in Russian].