%0 Journal Article
%A K. P. Kokhas'
%A A. Suvorov
%T Spectral estimations for Laplace operator for the discrete Heisenberg group
%J Zapiski Nauchnykh Seminarov POMI
%D 1999
%P 129-144
%V 256
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1999_256_a9/
%G ru
%F ZNSL_1999_256_a9