TY  - JOUR
AU  - STOTHERS, W. W.
TI  - CONGRUENCE AND NON-CONGRUENCE SUBGROUPS OF THE (2,3,7)-GROUP
JO  - Glasgow mathematical journal
PY  - 2006
SP  - 351
EP  - 363
VL  - 48
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089506003223/
DO  - 10.1017/S0017089506003223
ID  - 10_1017_S0017089506003223
ER  -