%0 Journal Article
%A T. Head
%T An algebraic characterization of multiplicative semigroups of real valued functions.
%J Semigroup forum
%D 1977
%P 93-94
%V 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1977__14_186359/
%F SF_1977__14_186359