%0 Journal Article %A R. Gabasov %T Necessary optimality conditions for a system of integral equations %J Differencialʹnye uravneniâ %D 1969 %P 952-953 %V 5 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_5_a16/ %G ru %F DE_1969_5_5_a16