@article{MAN_1899__52_157950,
     author = {J. Horn},
     title = {Ueber lineare {Differentialgleichungen} mit einem ver\"anderlichen {Parameter}},
     journal = {Mathematische Annalen},
     pages = {340--362},
     publisher = {mathdoc},
     volume = {52},
     year = {1899},
     zbl = {30.0300.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1899__52_157950/}
}