TY  - JOUR
AU  - Brenner, J. L.
AU  - Macleod, R. A.
AU  - Olesky, D. D.
TI  - Non-Free Groups Generated by Two 2 X 2 Matrices
JO  - Canadian journal of mathematics
PY  - 1975
SP  - 237
EP  - 245
VL  - 27
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-029-5/
DO  - 10.4153/CJM-1975-029-5
ID  - 10_4153_CJM_1975_029_5
ER  -