%0 Journal Article
%A S. V. Sukhinin
%T On descreteness of scattering eigenfrequences of periodic cascade
%J Zapiski Nauchnykh Seminarov POMI
%D 1981
%P 192-196
%V 117
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1981_117_a13/
%G ru
%F ZNSL_1981_117_a13