TY - JOUR AU - V. B. Marenich TI - The metric structure of open manifolds of nonnegative curvature JO - Doklady Akademii Nauk PY - 1981 SP - 801 EP - 804 VL - 261 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_261_4_a6/ LA - ru ID - DAN_1981_261_4_a6 ER -