TY - JOUR AU - V. I. Arkin AU - V. L. Levin TI - Extreme points of a certain set of measurable vector functions of several variables and convexity of the values of vector integrals JO - Doklady Akademii Nauk PY - 1971 SP - 1223 EP - 1226 VL - 199 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_199_6_a0/ LA - ru ID - DAN_1971_199_6_a0 ER -