%0 Journal Article %A Vanda Fülöp %T Double sine series with nonnegative coefficients and Lipschitz classes %J Colloquium Mathematicum %D 2006 %P 25-34 %V 105 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm105-1-3/ %R 10.4064/cm105-1-3 %G en %F 10_4064_cm105_1_3