TY  - JOUR
AU  - Bowen, Lewis
TI  - Free groups in lattices
JO  - Geometry & topology
PY  - 2009
SP  - 3021
EP  - 3054
VL  - 13
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.2140/gt.2009.13.3021/
DO  - 10.2140/gt.2009.13.3021
ID  - GT_2009_13_5_a9
ER  -