@article{GDZPPN002106396,
title = {Degree for cohomological invariants for quadratic forms.},
journal = {Inventiones mathematicae},
volume = {96},
year = {1989},
pages = {551-570},
zbl = {0685.10015},
url = {http://dml.mathdoc.fr/item/GDZPPN002106396}
}
Jacob, Bill; Rost, Markus. Degree for cohomological invariants for quadratic forms.. Inventiones mathematicae, Tome 96 (1989) pp. 551-570. http://gdmltest.u-ga.fr/item/GDZPPN002106396/