@article{JRAM_1888__103_148715,
     author = {J. Knoblauch},
     title = {Ueber die {Bedingung} f\"ur die {Isometrie} der {Kr\"ummungscurven.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {40--43},
     publisher = {mathdoc},
     volume = {103},
     year = {1888},
     zbl = {20.0754.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1888__103_148715/}
}