TY  - JOUR
AU  - C.D. Papakyriakopoulos
TI  - On the Ends of the Fundamental Groups of 3-Manifolds with Boundary.
JO  - Commentarii mathematici Helvetici
PY  - 1957
SP  - 85
EP  - 92
VL  - 32
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1957__32_139147/
ID  - CMH_1957__32_139147
ER  -