@article{GDZPPN002238942,
title = {Galois cohomology of special orthogonal groups.},
journal = {Manuscripta mathematica},
volume = {94},
year = {1997},
pages = {247-266},
zbl = {1055.11512},
url = {http://dml.mathdoc.fr/item/GDZPPN002238942}
}
Wadsworth, A.; Garibaldi, R.; Tignol, J. Galois cohomology of special orthogonal groups.. Manuscripta mathematica, Tome 94 (1997) pp. 247-266. http://gdmltest.u-ga.fr/item/GDZPPN002238942/