1. P. Ya. Polubarinova-Kochina, Groundwater Flow Theory [in Russian], Gostekhteoretizdat, Moscow, 1952.
2. F. Ringleb, ?Exakte Lösungen der Differentialgleichungen einer adiabatischen Gasstromug,? ZAMM, vol. 20, no. 4, 1940.
3. L. I. Sedov, Plane Problems of Hydrodynamics and Aerodynamics [in Russian], Gostekhteoretizdat, Moscow, 1950.
4. H. Neuber, ?Theory of stress concentration for shear strained prismatical bodies with arbitrary nonlinear stress-strain law,? Trans. ASME, ser. E, J. Appl. Mech., vol. 28, no. 4, 1961.
5. H. Bateman and A. Erdelyi, Higher Transcendental Functions; Hypergeometric Functions; Legendre Functions [Russian translation], Nauka, Moscow, 1965.