%0 Journal Article %A H. D. Hoang %T The jump condition in a problem of optimal control %J Differencialʹnye uravneniâ %D 1966 %P 619-627 %V 2 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1966_2_5_a4/ %G ru %F DE_1966_2_5_a4