@article{JRAM_1895__114_148941,
     author = {Paul St\"ackel},
     title = {Ueber {Transformationen} partieller {Differentialgleichungen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {116--142},
     publisher = {mathdoc},
     volume = {114},
     year = {1895},
     zbl = {25.0602.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1895__114_148941/}
}