TY  - JOUR
AU  - Johannes Huebschmann
TI  - Crossed n-folds extensions of groups and cohomology.
JO  - Commentarii mathematici Helvetici
PY  - 1980
SP  - 302
EP  - 313
VL  - 55
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1980__55_139827/
ID  - CMH_1980__55_139827
ER  -