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@article{MZ_1981__176_183665, author = {Thomas C. Craven}, title = {Orderings of {Higher} {Level} and {Semilocal} {Rings.}}, journal = {Mathematische Zeitschrift}, pages = {577--588}, publisher = {mathdoc}, volume = {176}, year = {1981}, zbl = {0438.13022}, url = {http://geodesic.mathdoc.fr/item/MZ_1981__176_183665/} }
Thomas C. Craven. Orderings of Higher Level and Semilocal Rings.. Mathematische Zeitschrift, Tome 176 (1981), pp. 577-588. http://geodesic.mathdoc.fr/item/MZ_1981__176_183665/