%0 Journal Article
%A Pierre Guillot
%T Geometric methods for cohomological invariants
%J Documenta mathematica
%D 2007
%P 521-545
%V 12
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/233/
%R 10.4171/dm/233
%F 10_4171_dm_233