%0 Journal Article
%A Richard Holmes
%T Smoothness Indices for Convex Functions and the Unique Hahn-Banach Extension Problem.
%J Mathematische Zeitschrift
%D 1971
%P 95-110
%V 119
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1971__119_171479/
%F MZ_1971__119_171479