%0 Journal Article
%A Morris Newman
%T Formulas and Multiplicative Relationships for the Parameters of Subgroups of the Modular Group.
%J Mathematische Annalen
%D 1974
%P 173-182
%V 212
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1974__212_182743/
%F MAN_1974__212_182743