%0 Journal Article
%A V. G. Krotov
%T When is an Orthogonal Series a Fourier Series?
%J Matematičeskie zametki
%D 2003
%P 139-142
%V 74
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2003_74_1_a15/
%G ru
%F MZM_2003_74_1_a15