TY  - JOUR
AU  - Yu. A. Brudnyi
AU  - P. A. Shvartsman
TI  - A linear extension operator for a space of smooth functions defined on a closed subset in $\mathbf{R}^n$
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 268
EP  - 272
VL  - 280
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_280_2_a1/
LA  - ru
ID  - DAN_1985_280_2_a1
ER  -