%0 Journal Article
%A L. A. Shaginyan
%T Trigonometric series with nonnegative partial sums
%J Matematičeskie zametki
%D 1983
%P 559-570
%V 33
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1983_33_4_a7/
%G ru
%F MZM_1983_33_4_a7