%0 Journal Article %A W. OkrasiƄski %T On the existence and uniqueness of non-negative solutions of a certain non-linear convolution equation %J Annales Polonici Mathematici %D 1979 %P 61-72 %V 36 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-36-1-61-72/ %R 10.4064/ap-36-1-61-72 %G en %F 10_4064_ap_36_1_61_72