%0 Journal Article %A Yu. P. Krivenkov %T Necessary optimality conditions for an optimal problem with operator criterion and constraints %J Doklady Akademii Nauk %D 1976 %P 29-32 %V 227 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_227_1_a5/ %G ru %F DAN_1976_227_1_a5