TY  - JOUR
AU  - V. A. Startsev
TI  - Smoothness of functions with respect to a~set
JO  - Matematičeskie zametki
PY  - 1974
SP  - 431
EP  - 436
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1974_15_3_a9/
LA  - ru
ID  - MZM_1974_15_3_a9
ER  -