%0 Journal Article
%A A. V. Marchenko
%T Approximation of the spectrum of an elliptic operator with almost-periodic coefficients
%J Matematičeskie zametki
%D 1979
%P 713-724
%V 25
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1979_25_5_a7/
%G ru
%F MZM_1979_25_5_a7