%0 Journal Article
%A STOTHERS, W. W.
%T CONGRUENCE AND NON-CONGRUENCE SUBGROUPS OF THE (2,3,7)-GROUP
%J Glasgow mathematical journal
%D 2006
%P 351-363
%V 48
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089506003223/
%R 10.1017/S0017089506003223
%F 10_1017_S0017089506003223