@article{MAN_1871__4_156547,
     author = {Somoff},
     title = {Ueber die ann\"ahernde {Rectification} beliebiger {Curven}},
     journal = {Mathematische Annalen},
     pages = {505--509},
     publisher = {mathdoc},
     volume = {4},
     year = {1871},
     zbl = {03.0313.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1871__4_156547/}
}