TY  - JOUR
AU  - A. S. Belov
TI  - On upper estimates of the~partial sums of a~trigonometric series in terms of lower estimates
JO  - Sbornik. Mathematics
PY  - 1994
SP  - 313
EP  - 330
VL  - 77
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1994_77_2_a4/
LA  - en
ID  - SM_1994_77_2_a4
ER  -