%0 Journal Article %A Thi, Hoang Van %T Approximate controllability for systems described by right invertible operators %J Control and Cybernetics %D 2008 %P 39-50 %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2008_37_1_a2/ %G en %F CC_2008_37_1_a2