%0 Journal Article
%A I. V. Stankevich
%T On the perturbation theory of a continuous spectrum
%J Doklady Akademii Nauk
%D 1962
%P 279-282
%V 144
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_144_2_a7/
%G ru
%F DAN_1962_144_2_a7