@article{MAN_1927__97_182648,
     author = {W. Krull},
     title = {Algebraische {Erweiterungen} kommutativer hyperkomplexer {Systeme}},
     journal = {Mathematische Annalen},
     pages = {473--489},
     publisher = {mathdoc},
     volume = {97},
     year = {1927},
     zbl = {53.0116.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1927__97_182648/}
}