%0 Journal Article %A Drábek, Pavel %T Bounded nonlinear perturbations of second order linear elliptic problems %J Commentationes Mathematicae Universitatis Carolinae %D 1981 %P 215-221 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1981__22_2_a0/ %G en %F CMUC_1981__22_2_a0