%0 Journal Article %A N. N. Krasovskii %T On optimal control in the presence of discrete feed-back signals %J Differencialʹnye uravneniâ %D 1965 %P 1415-1427 %V 1 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1965_1_11_a0/ %G ru %F DE_1965_1_11_a0