%0 Journal Article %A M. Kwapisz %A J. Turo %T On some class of non-linear functional equations %J Annales Polonici Mathematici %D 1977 %P 85-95 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-34-1-85-95/ %R 10.4064/ap-34-1-85-95 %G en %F 10_4064_ap_34_1_85_95