%0 Journal Article %A Zdzisław Denkowski %T Linear problems for systems of difference equations %J Annales Polonici Mathematici %D 1970 %P 77-86 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-24-1-77-86/ %R 10.4064/ap-24-1-77-86 %G en %F 10_4064_ap_24_1_77_86