TY - JOUR AU - M. M. Khrustalev TI - Necessary and sufficient optimality conditions in the form of Bellman's equation JO - Doklady Akademii Nauk PY - 1978 SP - 1023 EP - 1026 VL - 242 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1978_242_5_a10/ LA - ru ID - DAN_1978_242_5_a10 ER -