%0 Journal Article
%A L. B. Parnovskii
%T Asymptotics of the discrete spectrum of the Dirichlet and Neumann problems on the fundamental domain of the crystallographic group
%J Matematičeskie zametki
%D 1989
%P 63-69
%V 45
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1989_45_5_a6/
%G ru
%F MZM_1989_45_5_a6