@article{MAN_1874__7_156636,
     author = {Weiler},
     title = {Ueber die verschiedenen {Gattungen} der {Complexe} zweiten {Grades}},
     journal = {Mathematische Annalen},
     pages = {145--207},
     publisher = {mathdoc},
     volume = {7},
     year = {1874},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1874__7_156636/}
}