%0 Journal Article
%A V. P. Il'in
%A V. A. Solonnikov
%T Some properties of differentiable functions of several variables
%J Informatics and Automation
%D 1962
%P 205-226
%V 66
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1962_66_a13/
%G ru
%F TRSPY_1962_66_a13