%0 Journal Article
%A V. V. Tikhomirov
%T On the Riesz means of expansion in eigenfunctions and associated functions of a~nonselfadjoint ordinary differntial operator
%J Sbornik. Mathematics
%D 1977
%P 29-48
%V 31
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1977_31_1_a2/
%G en
%F SM_1977_31_1_a2