@article{MAN_1897__49_157861,
     author = {Emanuel Beke},
     title = {Zur {Gruppentheorie} der homogenen linearen {Differentialgleichungen.}},
     journal = {Mathematische Annalen},
     pages = {573--580},
     year = {1897},
     volume = {49},
     zbl = {28.0275.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1897__49_157861/}
}