%0 Journal Article %A Hui, S. %A Żak, S. %T Observer design for systems with unknown inputs %J International Journal of Applied Mathematics and Computer Science %D 2005 %P 431-446 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2005_15_4_a0/ %G en %F IJAMCS_2005_15_4_a0