%0 Journal Article %A V. I. Ivanov %A Yu. D. Rudomazina %T On the Turan Problem for Periodic Functions with Nonnegative Fourier Coefficients and Small Support %J Matematičeskie zametki %D 2005 %P 941-945 %V 77 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2005_77_6_a14/ %G ru %F MZM_2005_77_6_a14