@article{JRAM_1893__111_148887,
     author = {P. St\"ackel},
     title = {Ueber {Transformationen} von {Differentialgleichungen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {290--302},
     publisher = {mathdoc},
     volume = {111},
     year = {1893},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1893__111_148887/}
}