%0 Journal Article %A D. Suryanarayana %T Note on the functional equation. (Short Communication). %J Aequationes mathematicae %D 1981 %P 123-124 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1981__23_136898/ %F AM2_1981__23_136898