TY  - JOUR
AU  - V. V. Zhuk
TI  - The approximation of periodic functions by linear approximation methods
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 1038
EP  - 1041
VL  - 179
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_179_5_a7/
LA  - ru
ID  - DAN_1968_179_5_a7
ER  -