TY  - JOUR
AU  - Donald J. Collins
TI  - Generation and Presentation of One-Relator Groups with Centre.
JO  - Mathematische Zeitschrift
PY  - 1977
SP  - 63
EP  - 78
VL  - 157
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1977__157_172597/
ID  - MZ_1977__157_172597
ER  -