%0 Journal Article %A A. A. Kuleshov %T Necessary conditions for optimality in an optimal control problem for a mixed system %J Doklady Akademii Nauk %D 1982 %P 805-809 %V 265 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_265_4_a7/ %G ru %F DAN_1982_265_4_a7