TY  - JOUR
AU  - N. A. Il'yasov
TI  - On the Direct Theorem of Approximation Theory of Periodic Functions in Different Metrics
JO  - Informatics and Automation
PY  - 1997
SP  - 220
EP  - 234
VL  - 219
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1997_219_a14/
LA  - ru
ID  - TRSPY_1997_219_a14
ER  -