%0 Journal Article
%A A. V. Efimov
%T On nonsummability of orthogonal series by linear methods
%J Doklady Akademii Nauk
%D 1963
%P 31-34
%V 152
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_152_1_a6/
%G ru
%F DAN_1963_152_1_a6