%0 Journal Article
%A B. S. Kashin
%T On approximation properties of complete orthonormal systems
%J Informatics and Automation
%D 1985
%P 187-191
%V 172
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a12/
%G ru
%F TRSPY_1985_172_a12