%0 Journal Article %A SHIGERU HARUKI %T On Two Functional Equations Connected with a Mean-Value Property of Polynomials %J Aequationes mathematicae %D 1971 %P 275-277 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1971__6_136201/ %F AM2_1971__6_136201