@article{JRAM_1890__106_148776,
     author = {V. Eberhard},
     title = {Eine {Classification} der allgemeinen {Ebenensysteme.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {89--120},
     year = {1890},
     volume = {106},
     zbl = {22.0553.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1890__106_148776/}
}