%0 Journal Article
%A V. V. Arestov
%A E. E. Berdysheva
%T Tur\'an's problem for positive definite functions with supports in a~hexagon
%J Trudy Instituta matematiki i mehaniki
%D 2001
%P 21-29
%V 7
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2001_7_1_a1/
%G ru
%F TIMM_2001_7_1_a1