@article{MZ_1935__39_168536,
     author = {G. K\"othe},
     title = {Verallgemeinerte {Abelsche} {Gruppen} mit hyperkomplexen {Operatorenring}},
     journal = {Mathematische Zeitschrift},
     pages = {31--44},
     publisher = {mathdoc},
     volume = {39},
     year = {1935},
     zbl = {0010.01102},
     url = {http://geodesic.mathdoc.fr/item/MZ_1935__39_168536/}
}