%0 Journal Article %A A. S. Belov %T Examples of trigonometric series with non-negative partial sums %J Sbornik. Mathematics %D 1995 %P 485-510 %V 186 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1995_186_4_a1/ %G en %F SM_1995_186_4_a1