%0 Journal Article %A S. N. Slugin %T Existence of an optimal control for a system with variable domain of definition %J Doklady Akademii Nauk %D 1983 %P 818-820 %V 268 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_268_4_a10/ %G ru %F DAN_1983_268_4_a10