%0 Journal Article %A Staffans, O. J. %T J-energy preserving well-posed linear systems %J International Journal of Applied Mathematics and Computer Science %D 2001 %P 1361-1378 %V 11 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2001_11_6_a7/ %G en %F IJAMCS_2001_11_6_a7