TY - JOUR AU - M. D. Mardanov TI - Necessary optimality conditions in systems with lags and phase constraints JO - Matematičeskie zametki PY - 1987 SP - 691 EP - 702 VL - 42 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1987_42_5_a8/ LA - ru ID - MZM_1987_42_5_a8 ER -