%0 Journal Article %A W. Mydlarczyk %T The existance of nontrival solutions of Volterra equations. %J Mathematica Scandinavica %D 1991 %P 83-88 %V 68 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1991__68_1_167148/ %F MS2_1991__68_1_167148