TY  - JOUR
AU  - V. S. Kryuchkov
TI  - On the smoothness of the symbol of the Calderon--Zygmund singular integral operator
JO  - Doklady Akademii Nauk
PY  - 1982
SP  - 540
EP  - 544
VL  - 267
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1982_267_3_a5/
LA  - ru
ID  - DAN_1982_267_3_a5
ER  -