@article{JRAM_1857__53_147667,
     author = {R. Lipschitz},
     title = {Einige {S\"atze} aus der {Theorie} der quadratischen {Formen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {238--259},
     publisher = {mathdoc},
     volume = {53},
     year = {1857},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1857__53_147667/}
}