TY  - JOUR
AU  - S. B. Stechkin
TI  - Turan's Problem for Trigonometric Sums
JO  - Informatics and Automation
PY  - 1997
SP  - 335
EP  - 339
VL  - 219
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1997_219_a20/
LA  - ru
ID  - TRSPY_1997_219_a20
ER  -