TY  - JOUR
AU  - V. I. Nechaev
AU  - V. L. Topunov
TI  - Estimation of the modulus of complete rational trigonometric sums of degree three and four
JO  - Informatics and Automation
PY  - 1981
SP  - 125
EP  - 129
VL  - 158
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1981_158_a10/
LA  - ru
ID  - TRSPY_1981_158_a10
ER  -