TY  - JOUR
AU  - Kh. P. Rustamov
TI  - On differential-smoothness properties of functions in the space
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 46
EP  - 51
VL  - 306
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_306_1_a9/
LA  - ru
ID  - DAN_1989_306_1_a9
ER  -