%0 Journal Article %A S. Czerwik %T On the existence of a Lipschitz solution of a functional equation %J Matematic̀Œki vesnik %D 1976 %P 49 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MV_1976_28_1_a5/ %F MV_1976_28_1_a5