TY  - JOUR
AU  - G. I. Natanson
TI  - Approximation of discontinuous functions by Fourier sums
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 1033
EP  - 1036
VL  - 180
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_180_5_a3/
LA  - ru
ID  - DAN_1968_180_5_a3
ER  -