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@article{MZ_1984__185_173385, author = {G\"unter T\"orner and Hans-Heinrich Brungs}, title = {Extensions of {Chain} {Rings.}}, journal = {Mathematische Zeitschrift}, pages = {93--104}, publisher = {mathdoc}, volume = {185}, year = {1984}, zbl = {0533.16017}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__185_173385/} }
Günter Törner; Hans-Heinrich Brungs. Extensions of Chain Rings.. Mathematische Zeitschrift, Tome 185 (1984), pp. 93-104. http://geodesic.mathdoc.fr/item/MZ_1984__185_173385/