TY  - JOUR
AU  - A.R. Garzon
AU  - E.M. Vitale
TI  - On the second cohomology categorical group and a Hochschild-Serre 2-exact sequence
JO  - Theory and applications of categories
PY  - 2015
SP  - 933
EP  - 984
VL  - 30
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TAC_2015_30_a26/
LA  - en
ID  - TAC_2015_30_a26
ER  -