@article{JRAM_1864__63_147919,
     author = {E.B. Christoffel},
     title = {Verallgemeinerung einiger {Theoreme} des {Herrn} {Weierstrass.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {255--272},
     publisher = {mathdoc},
     volume = {63},
     year = {1864},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1864__63_147919/}
}