TY  - JOUR
AU  - Lam, Tsit-Yuen
TI  - A Commutator Formula for a Pair of Subgroups and A Theorem of Blackburn
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 217
EP  - 219
VL  - 12
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-025-5/
DO  - 10.4153/CMB-1969-025-5
ID  - 10_4153_CMB_1969_025_5
ER  -