@article{DAN_1975_225_1_a18, author = {R. F. Polishchuk}, title = {The gravitational field and conservation laws}, journal = {Doklady Akademii Nauk}, pages = {74--77}, publisher = {mathdoc}, volume = {225}, number = {1}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_1_a18/} }