%0 Journal Article %A Marek Kuczma %T Non-negative continuous solutions of a functional inequality %J Annales Polonici Mathematici %D 1979 %P 73-84 %V 36 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-36-1-73-84/ %R 10.4064/ap-36-1-73-84 %G en %F 10_4064_ap_36_1_73_84