TY  - JOUR
AU  - M. K. Potapov
TI  - Coincidence of classes of functions defined by the generalized shift operator or by the order of best polynomial approximation
JO  - Matematičeskie zametki
PY  - 1999
SP  - 242
EP  - 257
VL  - 66
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1999_66_2_a11/
LA  - ru
ID  - MZM_1999_66_2_a11
ER  -