TY  - JOUR
AU  - John W. Morgan
TI  - Ergodic theory and free actions of groups on IR-trees.
JO  - Inventiones mathematicae
PY  - 1988
SP  - 605
EP  - 622
VL  - 94
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1988__94_2_143638/
ID  - IM_1988__94_2_143638
ER  -