@article{JRAM_1858__55_147726,
     author = {R. Hoppe},
     title = {Zur {Theorie} der parallelen {Curven.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {95--96},
     publisher = {mathdoc},
     volume = {55},
     year = {1858},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1858__55_147726/}
}