TY  - JOUR
AU  - K. I. Babenko
TI  - Approximation of a certain class of periodical functions of many variables by trigonometric polynomials
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 982
EP  - 985
VL  - 132
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_132_5_a2/
LA  - ru
ID  - DAN_1960_132_5_a2
ER  -