%0 Journal Article
%A V. V. Dyakin
%A S. I. Petrukhnovskii
%T On discreteness of~the~spectrum of~some operator sheaves associated with a~periodic Schr\"odinger equation
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1988
%P 94-102
%V 74
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1988_74_1_a7/
%G ru
%F TMF_1988_74_1_a7