@article{JRAM_1834__11_146876,
     author = {C.G.J. Jacobi},
     title = {Demonstratio formulae ... .},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {307--307},
     publisher = {mathdoc},
     volume = {11},
     year = {1834},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1834__11_146876/}
}