%0 Journal Article %A M. J. Mardanov %A T. K. Melikov %T On necessary optimality conditions for discrete control systems %J The Bulletin of Irkutsk State University. Series Mathematics %D 2020 %P 49-61 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2020_31_a3/ %G ru %F IIGUM_2020_31_a3