%0 Journal Article %A Sova, Miroslav %T Abstract semilinear equations with small nonlinearities %J Commentationes Mathematicae Universitatis Carolinae %D 1971 %P 785-805 %V 12 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1971__12_4_a10/ %G en %F CMUC_1971__12_4_a10