%0 Journal Article
%A V. S. Rykhlov
%T On properties of the eigenfunctions of a~quadratic pencil of the second order differential operators
%J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics
%D 2009
%P 31-44
%V 9
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ISU_2009_9_1_a4/
%G ru
%F ISU_2009_9_1_a4