TY - JOUR AU - A. I. Vasil'ev TI - Defining a~metric in a~linear space by means of a~family of subsets JO - Matematičeskie zametki PY - 1976 SP - 237 EP - 246 VL - 19 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1976_19_2_a8/ LA - ru ID - MZM_1976_19_2_a8 ER -