TY  - JOUR
AU  - Alfred Pietrowski
TI  - The Isomorphism Problem for One-relator Groups with Non-trivial Centre.
JO  - Mathematische Zeitschrift
PY  - 1974
SP  - 95
EP  - 106
VL  - 136
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1974__136_172028/
ID  - MZ_1974__136_172028
ER  -