TY  - JOUR
AU  - V. P. Il'in
AU  - V. A. Solonnikov
TI  - Some properties of differentiable functions of many variables
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 538
EP  - 541
VL  - 136
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_136_3_a5/
LA  - ru
ID  - DAN_1961_136_3_a5
ER  -