%0 Journal Article
%A A. Borel
%A J-P. Serre
%T Corners and Arithmetic Groups
%J Commentarii mathematici Helvetici
%D 1973
%P 436-483
%V 48
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1973__48_139559/
%F CMH_1973__48_139559