@article{JRAM_1842__24_183238,
     author = {H. Grassman},
     title = {Theorie der {Centralen.} {(Fortsetzung).}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {372--380},
     publisher = {mathdoc},
     volume = {24},
     year = {1842},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1842__24_183238/}
}