%0 Journal Article %A Kučera, Jan %T On accessibility of bilinear systems %J Czechoslovak Mathematical Journal %D 1970 %P 160-168 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100955/ %R 10.21136/CMJ.1970.100955 %G en %F 10_21136_CMJ_1970_100955