TY  - JOUR
AU  - Ulbrich, K.-H.
TI  - On cohomology of graded group categories
JO  - Compositio Mathematica
PY  - 1987
SP  - 409
EP  - 417
VL  - 63
IS  - 3
PB  - Martinus Nijhoff Publishers
UR  - http://archive.numdam.org/item/CM_1987__63_3_409_0/
LA  - en
ID  - CM_1987__63_3_409_0
ER  -