TY  - JOUR
AU  - Soren Jondrup
AU  - Anders Jensen
TI  - Smash products, group actions and group graded rings.
JO  - Mathematica Scandinavica
PY  - 1991
SP  - 161
EP  - 170
VL  - 68
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1991__68_1_167154/
ID  - MS2_1991__68_1_167154
ER  -