%0 Journal Article
%A S. P. Novikov
%T Difference Schr\"odinger Operators
%J Informatics and Automation
%D 1999
%P 275-290
%V 224
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1999_224_a17/
%G ru
%F TRSPY_1999_224_a17