%0 Journal Article
%A H.L. ROYDEN
%T The Analytic Approximation of Differentiable Mappings.
%J Mathematische Annalen
%D 1959
%P 171-179
%V 139
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1959__139_160742/
%F MAN_1959__139_160742