%0 Journal Article
%A F. Rudolf Beyl
%T The Schur Multiplicator of SL(2, Z/mZ) and the Congruence Subgroup Property.
%J Mathematische Zeitschrift
%D 1986
%P 23-42
%V 191
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1986__191_173654/
%F MZ_1986__191_173654