TY  - JOUR
AU  - V. A. Yudin
TI  - On Positive Values of Spherical Harmonics and Trigonometric Polynomials
JO  - Matematičeskie zametki
PY  - 2004
SP  - 476
EP  - 480
VL  - 75
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2004_75_3_a19/
LA  - ru
ID  - MZM_2004_75_3_a19
ER  -