%0 Journal Article %A Daneš, Josef %T Generalized concentrative mappings and their fixed points %J Commentationes Mathematicae Universitatis Carolinae %D 1970 %P 115-136 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1970__11_1_a8/ %G en %F CMUC_1970__11_1_a8