TY  - JOUR
AU  - KIRSCHMER, MARKUS
AU  - LEEDHAM-GREEN, CHARLES
TI  - COMPUTING WITH SUBGROUPS OF THE MODULAR GROUP
JO  - Glasgow mathematical journal
PY  - 2015
SP  - 173
EP  - 180
VL  - 57
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089514000202/
DO  - 10.1017/S0017089514000202
ID  - 10_1017_S0017089514000202
ER  -