TY  - JOUR
AU  - A. I. Stepanets
TI  - Approximation of periodic functions by Fourier sums
JO  - Informatics and Automation
PY  - 1987
SP  - 202
EP  - 204
VL  - 180
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a123/
LA  - ru
ID  - TRSPY_1987_180_a123
ER  -