Post-Post-Newtonian Approximation in General Relativity. Proceeding of the 3rd _Canadian Conference on General Relativity and Relativistic Astroophysics. 1990. 240-243
Post-Post-Newtonian Approximation in General Relativity. Proceeding of the 3rd _Canadian Conference on General Relativity and Relativistic Astroophysics. 1990. 240-243