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@article{ARM_1969__5_3_a2, author = {Hoehnke, Hans-J\"urgen}, title = {Zur {Einbettung} von $\Omega${-Pseudoscharen} in {Halbgruppen}}, journal = {Archivum mathematicum}, pages = {131--141}, publisher = {mathdoc}, volume = {05}, number = {3}, year = {1969}, mrnumber = {0285469}, zbl = {0275.20123}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/ARM_1969__5_3_a2/} }
Hoehnke, Hans-Jürgen. Zur Einbettung von $\Omega$-Pseudoscharen in Halbgruppen. Archivum mathematicum, Tome 05 (1969) no. 3, pp. 131-141. http://geodesic.mathdoc.fr/item/ARM_1969__5_3_a2/