%0 Journal Article
%A A. Lundberg
%T On the functional equation f(...(x) + g(y)) = ..(x) * h(x+y). (Short Communication).
%J Aequationes mathematicae
%D 1977
%P 309-310
%V 15
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1977__15_136666/
%F AM2_1977__15_136666