TY  - JOUR
AU  - A. S. Belov
TI  - Some estimates for non-negative trigonometric polynomials and properties of these polynomials
JO  - Izvestiya. Mathematics 
PY  - 2003
SP  - 637
EP  - 653
VL  - 67
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2003_67_4_a0/
LA  - en
ID  - IM2_2003_67_4_a0
ER  -