TY  - JOUR
AU  - V. I. Berdyshev
TI  - On the modulus of continuity of an operator of best approximation
JO  - Matematičeskie zametki
PY  - 1974
SP  - 797
EP  - 808
VL  - 15
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1974_15_5_a16/
LA  - ru
ID  - MZM_1974_15_5_a16
ER  -