@article{MAN_1869__1_156410,
     author = {A. Brill},
     title = {Ueber die {Differentialgleichungen} f\"ur {Lichtschwingungen.} {Von} {A.} {Brill} in {Giessen.}},
     journal = {Mathematische Annalen},
     pages = {225--252},
     publisher = {mathdoc},
     volume = {1},
     year = {1869},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1869__1_156410/}
}