@article{MAN_1954__128_160391,
     author = {M. Pinl},
     title = {Integrallose {Darstellung} isotroper {Kurven} im sph\"arischen drei- und vierdimensionalen {Raum.}},
     journal = {Mathematische Annalen},
     pages = {49--54},
     publisher = {mathdoc},
     volume = {128},
     year = {1954},
     zbl = {0055.15201},
     url = {http://geodesic.mathdoc.fr/item/MAN_1954__128_160391/}
}