%0 Journal Article
%A Ya. Sh. Salimov
%T On the Riesz means for root function expansions of certain nonlocal boundary value problems
%J Differencialʹnye uravneniâ
%D 1987
%P 155-160
%V 23
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_1_a15/
%G ru
%F DE_1987_23_1_a15