%0 Journal Article
%A S. A. Stepin
%A A. A. Arzhanov
%T On localization of the spectrum in a~problem in singular perturbation theory
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2002
%P 608-610
%V 57
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_2002_57_3_a16/
%G en
%F RM_2002_57_3_a16