%0 Journal Article %A Kaczorek, T. %T Externally and internally positive singular discrete-time linear systems %J International Journal of Applied Mathematics and Computer Science %D 2002 %P 197-202 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_2_a5/ %G en %F IJAMCS_2002_12_2_a5