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@article{10_4064_aa_41_1_55_70, author = {Craig Cordes}, title = {Quadratic forms over fields with four quaternion algebras}, journal = {Acta Arithmetica}, pages = {55--70}, publisher = {mathdoc}, volume = {41}, number = {1}, year = {1982}, doi = {10.4064/aa-41-1-55-70}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-41-1-55-70/} }
Craig Cordes. Quadratic forms over fields with four quaternion algebras. Acta Arithmetica, Tome 41 (1982) no. 1, pp. 55-70. doi : 10.4064/aa-41-1-55-70. http://geodesic.mathdoc.fr/articles/10.4064/aa-41-1-55-70/
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