@article{AMLG_1981__21_137983,
     author = {Dieter Klaua},
     title = {Inhomogene {Operationen} reeller {Ordinalzahlen.}},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {149--168},
     publisher = {mathdoc},
     volume = {21},
     year = {1981},
     zbl = {0472.03041},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1981__21_137983/}
}