TY - JOUR AU - Hoàng Tụy TI - On an axiomatics for extremal problems and first-order necessary conditions JO - Doklady Akademii Nauk PY - 1974 SP - 1233 EP - 1236 VL - 216 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_216_6_a7/ LA - ru ID - DAN_1974_216_6_a7 ER -