%0 Journal Article
%A E. Leuzinger
%T Tits Geometry, Arithmetic Groups, and the Proof of a Conjecture of Siegel
%J Journal of Lie theory
%D 2004
%P 317-338
%V 14
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JLT_2004_14_2_JLT_2004_14_2_a0/
%F JLT_2004_14_2_JLT_2004_14_2_a0