TY - JOUR AU - G. A. Alekseev TI - On soliton solutions of Einstein's equations in a vacuum JO - Doklady Akademii Nauk PY - 1981 SP - 827 EP - 830 VL - 256 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_256_4_a13/ LA - ru ID - DAN_1981_256_4_a13 ER -