%0 Journal Article %A B. Mordukhovich %T Existence of optimal controls in a problem with a free right-hand end point %J Differencialʹnye uravneniâ %D 1972 %P 1994-1998 %V 8 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_11_a10/ %G ru %F DE_1972_8_11_a10