TY  - JOUR
AU  - Leech, John
TI  - Some definitions of Klein's simple group of order 168 and other groups
JO  - Glasgow mathematical journal
PY  - 1962
SP  - 166
EP  - 175
VL  - 5
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034547/
DO  - 10.1017/S2040618500034547
ID  - 10_1017_S2040618500034547
ER  -