%0 Journal Article
%A Colin Maclachlan
%T Commensurability classes of discrete arithmetic   hyperbolic groups
%J Groups, geometry, and dynamics
%D 2011
%P 767-785
%V 5
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4171/ggd/147/
%R 10.4171/ggd/147
%F 10_4171_ggd_147