%0 Journal Article %A Kolomý, Josef %T Some existence theorems for nonlinear problems %J Commentationes Mathematicae Universitatis Carolinae %D 1966 %P 207-217 %V 07 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1966__7_2_a4/ %G en %F CMUC_1966__7_2_a4