@article{JRAM_1869__71_148123,
     author = {J. Lappe},
     title = {Ueber den {Feuerbachschen} {Satz} f\"ur das ebene {Dreieck.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {387--392},
     publisher = {mathdoc},
     volume = {71},
     year = {1869},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1869__71_148123/}
}