%0 Journal Article
%A G. Rodé
%T Differentiability of a convex semigroup on IRm.
%J Semigroup forum
%D 1983
%P 317-322
%V 26
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1983__26_134613/
%F SF_1983__26_134613