%0 Journal Article
%A E.T. Ljubenova
%T On D'Alembert's functional equation on a Abelian group.
%J Aequationes mathematicae
%D 1981
%P 54-55
%V 22
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1981__22_136853/
%G en
%F AM2_1981__22_136853