TY  - JOUR
AU  - Yu. V. Kuznetsov
TI  - On the question of the density of infinitely differentiable functions in Besov spaces
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1984
SP  - 203
EP  - 212
VL  - 170
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1984_170_a13/
LA  - ru
ID  - TM_1984_170_a13
ER  -