TY  - JOUR
AU  - Beno Eckmann
AU  - Urs Stammbach
AU  - Peter J. Hilton
TI  - On the Homology Theory of Central Group Extensions II. The Exact Sequence in the General Case
JO  - Commentarii mathematici Helvetici
PY  - 1972
SP  - 171
EP  - 178
VL  - 47
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1972__47_139506/
ID  - CMH_1972__47_139506
ER  -