TY  - JOUR
AU  - K. I. Oskolkov
TI  - The sharpness of the Lebesgue estimate for the approximation of functions with prescribed modulus of continuity by Fourier sums
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1971
SP  - 337
EP  - 345
VL  - 112
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1971_112_a21/
LA  - ru
ID  - TM_1971_112_a21
ER  -