%0 Journal Article %A S. Ya. Gorokhovik %T The connection between certain necessary conditions for the optimality of singular controls %J Differencialʹnye uravneniâ %D 1974 %P 1130-1133 %V 10 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_6_a16/ %G ru %F DE_1974_10_6_a16