TY  - JOUR
AU  - N. P. Korneichuk
TI  - On uniform approximation of periodic functions by subspaces of finite dimension
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 525
EP  - 528
VL  - 213
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_213_3_a6/
LA  - ru
ID  - DAN_1973_213_3_a6
ER  -