TY - JOUR AU - A. V. Bitsadze TI - On exact solutions of a version of the gravitational field equations JO - Doklady Akademii Nauk PY - 1980 SP - 266 EP - 267 VL - 253 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_253_2_a1/ LA - ru ID - DAN_1980_253_2_a1 ER -