%0 Journal Article
%A C.J. NEUGEBAUER
%T Symmetrie and Smooth Functions of Several Variables.
%J Mathematische Annalen
%D 1964
%P 285-292
%V 153
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1964__153_161135/
%F MAN_1964__153_161135