@article{JRAM_1830__6_146708,
     author = {E. K\"ohlau},
     title = {Elementarer {Beweis} eines in der {Differenzen-Rechnung} vorkommenden {Ausdrucks.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {255--256},
     publisher = {mathdoc},
     volume = {6},
     year = {1830},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1830__6_146708/}
}