%0 Journal Article
%A S. Z. Levendorskii
%T The method of approximate spectral projection as a general method for proving the classical formula for the asymptotic behavior of a spectrum
%J Doklady Akademii Nauk
%D 1983
%P 287-291
%V 271
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1983_271_2_a6/
%G ru
%F DAN_1983_271_2_a6