%0 Journal Article %A I. V. Rasina %T Discrete nonuniform systems and sufficient conditions of optimality %J The Bulletin of Irkutsk State University. Series Mathematics %D 2017 %P 62-74 %V 19 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2017_19_a4/ %G ru %F IIGUM_2017_19_a4