TY  - JOUR
AU  - Pierre Guillot
TI  - Geometric methods for cohomological invariants
JO  - Documenta mathematica
PY  - 2007
SP  - 521
EP  - 545
VL  - 12
UR  - http://geodesic.mathdoc.fr/articles/10.4171/dm/233/
DO  - 10.4171/dm/233
ID  - 10_4171_dm_233
ER  -