%0 Journal Article %A N. A. Sizova %T Some bifurcations of the controllability regions of bilinear systems %J Differencialʹnye uravneniâ %D 1995 %P 890-893 %V 31 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1995_31_5_a21/ %G ru %F DE_1995_31_5_a21