TY - JOUR AU - A. G. Fakeyev TI - On necessary conditions of optimality for sequential decision problems JO - Teoriâ veroâtnostej i ee primeneniâ PY - 1969 SP - 742 EP - 746 VL - 14 IS - 4 UR - http://geodesic.mathdoc.fr/item/TVP_1969_14_4_a15/ LA - ru ID - TVP_1969_14_4_a15 ER -