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@article{MAN_1979__245_163319, author = {T.Y. Lam and R. Elman and A.R. Wadsworth}, title = {Pfister {Ideals} in {Witt} {Rings.}}, journal = {Mathematische Annalen}, pages = {219--246}, publisher = {mathdoc}, volume = {245}, year = {1979}, zbl = {0401.10032}, url = {http://geodesic.mathdoc.fr/item/MAN_1979__245_163319/} }
T.Y. Lam; R. Elman; A.R. Wadsworth. Pfister Ideals in Witt Rings.. Mathematische Annalen, Tome 245 (1979), pp. 219-246. http://geodesic.mathdoc.fr/item/MAN_1979__245_163319/