@article{05232994,
title = {Geometric methods for cohomological invariants.},
journal = {Documenta Mathematica},
volume = {12},
year = {2007},
pages = {521-545},
zbl = {1137.14010},
language = {en},
url = {http://dml.mathdoc.fr/item/05232994}
}
Guillot, Pierre. Geometric methods for cohomological invariants.. Documenta Mathematica, Tome 12 (2007) pp. 521-545. http://gdmltest.u-ga.fr/item/05232994/