@article{MAN_1921__84_158877,
     author = {O. Perron},
     title = {Lineare {Differentialgleichungen} unendlich hoher {Ordnung} mit ganzen rationalen {Koeffizienten}},
     journal = {Mathematische Annalen},
     pages = {31--42},
     publisher = {mathdoc},
     volume = {84},
     year = {1921},
     zbl = {48.0480.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1921__84_158877/}
}