TY - JOUR AU - A. G. Kusraev TI - On a general method of subdifferentiation JO - Doklady Akademii Nauk PY - 1981 SP - 822 EP - 826 VL - 257 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_257_4_a11/ LA - ru ID - DAN_1981_257_4_a11 ER -