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@article{AM2_1983__26_136991, author = {Howard E. Bell}, title = {On commutativity of {P.I.} rings. {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {121--121}, publisher = {mathdoc}, volume = {26}, year = {1983}, url = {http://geodesic.mathdoc.fr/item/AM2_1983__26_136991/} }
Howard E. Bell. On commutativity of P.I. rings. (Short Communication).. Aequationes mathematicae, Tome 26 (1983), p. 121. http://geodesic.mathdoc.fr/item/AM2_1983__26_136991/