TY - JOUR AU - L. N. Eshukov TI - Conditions for the existence of a solution of a certain optimal control problem JO - Doklady Akademii Nauk PY - 1968 SP - 29 EP - 32 VL - 183 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1968_183_1_a6/ LA - ru ID - DAN_1968_183_1_a6 ER -