%0 Journal Article %A V. V. Al'sevich %T Optimality conditions for optimal control tasksin the class of discrete control influences %J Trudy Instituta matematiki %D 2021 %P 10-16 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMB_2021_29_1_a1/ %G ru %F TIMB_2021_29_1_a1