1. A. A. Logunov and M. A. Mestvirishvili,The Relativistic Theory of Gravitation [in Russian], Nauka, Moscow (1989).
2. A. A. Logunov, M. A. Mestvirishvili, and Yu. V. Chugreev,The Relativistic Theory of Gravitation Based on Spaces of Constant Curvature [in Russian], Izd. Mosk. Univ., Moscow (1990);Teor. Mat. Fiz.,86, 163 (1991).
3. Yu. V. Chugreev,Teor. Mat. Fiz.,88, 459 (1991).
4. S. Weinberg,Gravitation and Cosmology, Wiley, New York (1972).
5. N. Rosen,Gen. Rel. Grav.,12, 493 (1980).