TY - JOUR AU - I. G. Nikolaev TI - Parallel translation and smoothness of the metric of spaces of bounded curvature JO - Doklady Akademii Nauk PY - 1980 SP - 1056 EP - 1058 VL - 250 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a7/ LA - ru ID - DAN_1980_250_5_a7 ER -