%0 Journal Article %A A. V. Bitsadze %T Exact solutions of some variants of the gravitational field equations %J Informatics and Automation %D 1981 %P 19-24 %V 157 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1981_157_a1/ %G ru %F TRSPY_1981_157_a1