TY  - JOUR
AU  - K. I. Babenko
TI  - Approximation of periodic functions of many variables by trigonometric polynomials
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 247
EP  - 250
VL  - 132
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_132_2_a0/
LA  - ru
ID  - DAN_1960_132_2_a0
ER  -