TY  - JOUR
AU  - E. M. Dyn'kin
TI  - On a constructive characterization of Sobolev and Besov classes
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 773
EP  - 775
VL  - 233
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_233_5_a3/
LA  - ru
ID  - DAN_1977_233_5_a3
ER  -