%0 Journal Article
%A Newman, Morris
%T The classical modular group as a subgroup of GL(2, Z)†
%J Glasgow mathematical journal
%D 1985
%P 161-164
%V 26
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006157/
%R 10.1017/S0017089500006157
%F 10_1017_S0017089500006157