%0 Journal Article %A HorĂ¡k, Karel %T On the Perron-Frobenius theory for sets of positive operators %J Commentationes Mathematicae Universitatis Carolinae %D 1978 %P 265-279 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1978__19_2_a3/ %G en %F CMUC_1978__19_2_a3