%0 Journal Article %A V. A. Srochko %T A connection between two necessary conditions for the optimality of singular controls %J Differencialʹnye uravneniâ %D 1970 %P 387-389 %V 6 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1970_6_2_a21/ %G ru %F DE_1970_6_2_a21