%0 Journal Article %A E. Ya. Roitenberg %T On the problem of control on subspaces in interrelated systems %J Doklady Akademii Nauk %D 1969 %P 998-1001 %V 185 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_5_a7/ %G ru %F DAN_1969_185_5_a7