%0 Journal Article %A V. A. Yudin %T Packings of balls in Euclidean space, and extremal problems for trigonometric polynomials %J Diskretnaya Matematika %D 1989 %P 69-72 %V 1 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_1989_1_2_a14/ %G ru %F DM_1989_1_2_a14