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@article{MAN_1970__188_162049, author = {J. VRABEC}, title = {Adjoining a {Unit} to a {Biregular} {Ring.}}, journal = {Mathematische Annalen}, pages = {219--226}, publisher = {mathdoc}, volume = {188}, year = {1970}, zbl = {0191.03402}, url = {http://geodesic.mathdoc.fr/item/MAN_1970__188_162049/} }
J. VRABEC. Adjoining a Unit to a Biregular Ring.. Mathematische Annalen, Tome 188 (1970), pp. 219-226. http://geodesic.mathdoc.fr/item/MAN_1970__188_162049/