%0 Journal Article
%A I. S. Kats
%T Some general theorems on the density of the spectrum of the string
%J Doklady Akademii Nauk
%D 1978
%P 785-788
%V 238
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1978_238_4_a4/
%G ru
%F DAN_1978_238_4_a4