%0 Journal Article %A PL. KANNAPPAN %A SOICHI HORINOUCHI %T On the System of Functional Equations f(x +y) = f(x) + f (y) and f(xy)=p(x)f(y) %J Aequationes mathematicae %D 1971 %P 195-201 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1971__6_136188/ %F AM2_1971__6_136188