%0 Journal Article %A R. F. Polishchuk %T The gravitational field and conservation laws %J Doklady Akademii Nauk %D 1975 %P 74-77 %V 225 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_225_1_a18/ %G ru %F DAN_1975_225_1_a18