%0 Journal Article %A V. V. Gorokhovik %T Necessary conditions for second-order optimality in problems of control with a vector performance index %J Differencialʹnye uravneniâ %D 1983 %P 1672-1680 %V 19 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_10_a2/ %G ru %F DE_1983_19_10_a2