%0 Journal Article %A G. E. Ivanov %T Continuity of optimal controls in differential games, and some properties of weakly and strongly convex functions %J Matematičeskie zametki %D 1999 %P 816-839 %V 66 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_66_6_a2/ %G ru %F MZM_1999_66_6_a2