TY - JOUR AU - R. F. Polishchuk TI - The gravitational field and conservation laws JO - Doklady Akademii Nauk PY - 1975 SP - 74 EP - 77 VL - 225 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_225_1_a18/ LA - ru ID - DAN_1975_225_1_a18 ER -