TY - JOUR AU - I. V. Raskina TI - A property of a circle in a two-dimensional Banach space JO - Matematičeskie zametki PY - 1994 SP - 79 EP - 83 VL - 55 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1994_55_1_a9/ LA - ru ID - MZM_1994_55_1_a9 ER -