TY  - JOUR
AU  - L. A. Shaginyan
TI  - Trigonometric series with nonnegative partial sums
JO  - Matematičeskie zametki
PY  - 1983
SP  - 559
EP  - 570
VL  - 33
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1983_33_4_a7/
LA  - ru
ID  - MZM_1983_33_4_a7
ER  -