@article{MAN_1912__71_158537,
     author = {E. Steinitz},
     title = {Rechteckige {Systeme} und {Moduln} in algebraischen {Zahlk\"orpern.} {I.}},
     journal = {Mathematische Annalen},
     pages = {328--354},
     publisher = {mathdoc},
     volume = {71},
     year = {1912},
     zbl = {42.0230.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1912__71_158537/}
}