@article{MZ_1950__52_169134,
     author = {W. Specht},
     title = {Gesetze in {Ringen.} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {557--589},
     year = {1950},
     volume = {52},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MZ_1950__52_169134/}
}