@article{JRAM_1877__83_148323,
     author = {Hermann Grassmann},
     title = {Zur {Elektrodynamik.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {57--64},
     publisher = {mathdoc},
     volume = {83},
     year = {1877},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1877__83_148323/}
}