%0 Journal Article %A Respondek, J. S. %T Approximate controllability of infinite dimensional systems of the n-th order %J International Journal of Applied Mathematics and Computer Science %D 2008 %P 199-212 %V 18 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2008_18_2_a7/ %G en %F IJAMCS_2008_18_2_a7