@article{MAN_1904__59_158168,
     author = {Max Caspar},
     title = {Abz\"ahlungen bez\"uglich des {Strahls} im n-dimensionalen {Raum}},
     journal = {Mathematische Annalen},
     pages = {517--528},
     year = {1904},
     volume = {59},
     zbl = {35.0575.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__59_158168/}
}