%0 Journal Article %A G. M. Begalishvili %T The optimal control problem under constraints on the phase coordinates %J Differencialʹnye uravneniâ %D 1973 %P 807-814 %V 9 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_5_a2/ %G ru %F DE_1973_9_5_a2