@article{MM2_1997__93_4_156297,
     author = {A. Wadsworth and R. Garibaldi and J. Tignol},
     title = {Galois cohomology of special orthogonal groups.},
     journal = {Manuscripta mathematica},
     pages = {247--266},
     publisher = {mathdoc},
     volume = {93},
     number = {4},
     year = {1997},
     zbl = {1055.11512},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156297/}
}