%0 Journal Article
%A I. S. Lomov
%T On the rate of convergence of biorthogonal series connected with second-order differential operators
%J Differencialʹnye uravneniâ
%D 1996
%P 71-82
%V 32
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1996_32_1_a9/
%G ru
%F DE_1996_32_1_a9