TY  - JOUR
AU  - Jonathan A. Hillman
TI  - Abelian normal subgroups of two-knot groups.
JO  - Commentarii mathematici Helvetici
PY  - 1986
SP  - 122
EP  - 148
VL  - 61
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1986__61_140044/
ID  - CMH_1986__61_140044
ER  -