%0 Journal Article %A Gavin Brown %A David C. Wilson %T A class of positive trigonometric sums. II. %J Mathematische Annalen %D 1989 %P 57-74 %V 285 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164584/ %F MAN_1989__285_1_164584