TY - JOUR AU - V. A. Kyrov TI - To the question of local extension of the parallel translations group of three-dimensional space JO - Vladikavkazskij matematičeskij žurnal PY - 2021 SP - 32 EP - 42 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMJ_2021_23_1_a3/ LA - ru ID - VMJ_2021_23_1_a3 ER -