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@article{MZ_1983__184_173343, author = {Zbigniew S. Marciniak}, title = {Idempotents in {Group} {Rings.}}, journal = {Mathematische Zeitschrift}, pages = {19--28}, publisher = {mathdoc}, volume = {184}, year = {1983}, zbl = {0513.16009}, url = {http://geodesic.mathdoc.fr/item/MZ_1983__184_173343/} }
Zbigniew S. Marciniak. Idempotents in Group Rings.. Mathematische Zeitschrift, Tome 184 (1983), pp. 19-28. http://geodesic.mathdoc.fr/item/MZ_1983__184_173343/