%0 Journal Article
%A V. P. Kurdyumov
%T On Riescz bases of eigenfunction of $2$-nd order differential operator with involution and integral boundary conditions
%J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics
%D 2015
%P 392-405
%V 15
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ISU_2015_15_4_a3/
%G ru
%F ISU_2015_15_4_a3