%0 Journal Article %A T. R. Gichev %T Correctness of an optimal control problem with a variable right end and an integral quadratic efficiency criterion %J Differencialʹnye uravneniâ %D 1978 %P 418-424 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_3_a2/ %G ru %F DE_1978_14_3_a2