TY  - JOUR
AU  - V. I. Burenkov
TI  - On approximation of functions in Sobolev spaces by finite functions on an arbitrary open set
JO  - Doklady Akademii Nauk
PY  - 1972
SP  - 259
EP  - 262
VL  - 202
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1972_202_2_a1/
LA  - ru
ID  - DAN_1972_202_2_a1
ER  -