@article{MAN_1874__7_156652,
     author = {Dersch.},
     title = {Doppeltangenten einer {Curve} nter {Ordnung}},
     journal = {Mathematische Annalen},
     pages = {497--511},
     publisher = {mathdoc},
     volume = {7},
     year = {1874},
     zbl = {06.0414.04},
     url = {http://geodesic.mathdoc.fr/item/MAN_1874__7_156652/}
}