TY  - JOUR
AU  - R. Strebel
TI  - A remark on subgroups of infinite index in Poincaré duality groups.
JO  - Commentarii mathematici Helvetici
PY  - 1977
SP  - 317
EP  - 324
VL  - 52
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1977__52_139696/
ID  - CMH_1977__52_139696
ER  -