TY - JOUR AU - V. V. Chumakov TI - Determination of optimal controls in a hierarchical system in the presence of external factors JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1989 SP - 1788 EP - 1799 VL - 29 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1989_29_12_a2/ LA - ru ID - ZVMMF_1989_29_12_a2 ER -