Kneser, M.; Knus, M.-A.; Ojanguren, M.; Parimala, R.; Sridharan, R.
Composition of quaternary quadratic forms
Compositio Mathematica, Tome 60 (1986) no. 2 , p. 133-150
Zbl 0612.10015 | MR 868134
URL stable : http://www.numdam.org/item?id=CM_1986__60_2_133_0

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