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@article{MAN_1949__121_160182, author = {Tibor Szele}, title = {Zur {Theorie} der {Zeroringe.}}, journal = {Mathematische Annalen}, pages = {242--246}, publisher = {mathdoc}, volume = {121}, year = {1949}, zbl = {0034.31001}, url = {http://geodesic.mathdoc.fr/item/MAN_1949__121_160182/} }
Tibor Szele. Zur Theorie der Zeroringe.. Mathematische Annalen, Tome 121 (1949), pp. 242-246. http://geodesic.mathdoc.fr/item/MAN_1949__121_160182/