TY  - JOUR
AU  - A. S. Belov
TI  - Partial sums of a trigonometric series with convex coefficients
JO  - Matematičeskie zametki
PY  - 1991
SP  - 21
EP  - 27
VL  - 50
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1991_50_4_a2/
LA  - ru
ID  - MZM_1991_50_4_a2
ER  -