%0 Journal Article %A Jank, G. %T Controllability, Observability and Optimal Control of Continuous-Time 2-D Systems %J International Journal of Applied Mathematics and Computer Science %D 2002 %P 181-195 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_2_a4/ %G en %F IJAMCS_2002_12_2_a4