TY  - JOUR
AU  - A. I. Stepanets
TI  - Classes of periodic functions and the approximation of their
JO  - Doklady Akademii Nauk
PY  - 1984
SP  - 1074
EP  - 1077
VL  - 277
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1984_277_5_a11/
LA  - ru
ID  - DAN_1984_277_5_a11
ER  -