@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/