%0 Journal Article %A V. I. Korobov %T Reduction of a controllability problem to a boundary value problem %J Differencialʹnye uravneniâ %D 1976 %P 1310-1312 %V 12 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_7_a20/ %G ru %F DE_1976_12_7_a20