TY  - JOUR
AU  - V. V. Arestov
AU  - E. E. Berdysheva
TI  - Tur\'an's problem for positive definite functions with supports in a~hexagon
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2001
SP  - 21
EP  - 29
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_2001_7_1_a1/
LA  - ru
ID  - TIMM_2001_7_1_a1
ER  -