%0 Journal Article %A B. Mordukhovich %T Optimal control of discrete systems %J Differencialʹnye uravneniâ %D 1973 %P 727-734 %V 9 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_4_a16/ %G ru %F DE_1973_9_4_a16