Geodesic
Signatures of Higher Level on Rings with Many Units.
Mathematische Zeitschrift, Tome 204 (1990) no. 3, pp. 129-144.

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Mots-clés : higher level reduced forms, reduced Witt rings, rings with many units, semi-local rings, space of signatures, local-global criterion for isotropy, representation theorem 
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     author = {M. Marshall and L. Walter},
     title = {Signatures of {Higher} {Level} on {Rings} with {Many} {Units.}},
     journal = {Mathematische Zeitschrift},
     pages = {129--144},
     publisher = {mathdoc},
     volume = {204},
     number = {3},
     year = {1990},
     zbl = {0676.10016},
     url = {http://geodesic.mathdoc.fr/item/MZ_1990__204_3_183760/}
}
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M. Marshall; L. Walter. Signatures of Higher Level on Rings with Many Units.. Mathematische Zeitschrift, Tome 204 (1990) no. 3, pp. 129-144. http://geodesic.mathdoc.fr/item/MZ_1990__204_3_183760/