TY - JOUR AU - V. L. Levin TI - Extremal problems with convex functionals that are lower semicontinuous with respect to convergence in measure JO - Doklady Akademii Nauk PY - 1975 SP - 1256 EP - 1259 VL - 224 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_224_6_a4/ LA - ru ID - DAN_1975_224_6_a4 ER -