TY  - JOUR
AU  - V. P. Il'in
AU  - V. A. Solonnikov
TI  - Some properties of differentiable functions of several variables
JO  - Informatics and Automation
PY  - 1962
SP  - 205
EP  - 226
VL  - 66
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1962_66_a13/
LA  - ru
ID  - TRSPY_1962_66_a13
ER  -