%0 Journal Article %A V. A. Yakubovich %T Solution of a certain algebra problem that arises in control theory %J Doklady Akademii Nauk %D 1970 %P 57-60 %V 193 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_193_1_a13/ %G ru %F DAN_1970_193_1_a13