%0 Journal Article
%A J. MENNICKE
%T On IHARA'S Modular Group.
%J Inventiones mathematicae
%D 1967
%P 202-228
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1967__4_141891/
%F IM_1967__4_141891