1. L. G. Stepanyants, N. D. Zablotskii, and I. E. Sipenkov, ?Methods for solving pressurized gas lubrication problems?, collection Gas Lubrication of Bearings [in Russian], In-t mashinovedeniya, Moscow, 1968.
2. C. H. T. Pen, Gas Lubricated spherical bearings. Trans. ASME. Ser. D. J. Basic Engng., 1963, Vol. 85, No. 2.
3. L. G. Loitsyanskii, Fluid Mechanics [in Russian], Fizmatgiz, Moscow, 1959.
4. N. D. Zablotskii, and I. E. Sipenkov, ?A technique for formulating the problem of forced gas lubrication of sliding bearings?, Tr. Leningr. politekhn. in-ta, No. 265, 1966.
5. Ya. M. Kotlyar, ?Asymptotic solution of the Reynolds equation?, Izv. AN SSSR, MZhG, Vol. 2, No. 1, 1967.