@article{MAN_1893__41_157616,
     author = {L. Koenigsberger},
     title = {Ueber die {Integration} simultaner partieller {Differentialgleichungssysteme.}},
     journal = {Mathematische Annalen},
     pages = {260--285},
     year = {1893},
     volume = {41},
     zbl = {24.0328.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1893__41_157616/}
}