1. S. Chandrasekhar and E. Fermi, Astrophys. J.,118, 116 (1953).
2. S. Chandrasekhar, Ellipsoidal Figures of Equilibrium, New Haven (1969).
3. J. B. Serrin, Mathematical, Foundation of Classical Fluid Mechanics [Russian translation], Izd. Inostr. Lit., Moscow (1963). p. 76.
4. V. C. A. Ferraro, Astrophys. J.,119, 407 (1954).
5. G. Gjellestad, Astrophys., J.126, 565 (1957).