@article{JRAM_1869__71_148118,
     author = {Paul Bachmann},
     title = {Zur {Transformation} der tern\"aren quadratischen {Formen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {296--304},
     publisher = {mathdoc},
     volume = {71},
     year = {1869},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1869__71_148118/}
}