%0 Journal Article
%A M. Sh. Birman
%A M. Z. Solomyak
%T Asymptotic properties of the spectrum of differential equations
%J Itogi nauki i tehniki. Seriâ, Matematičeskij analiz
%D 1977
%P 5-58
%V 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTM_1977_14_a0/
%G ru
%F INTM_1977_14_a0