@article{JRAM_1866__66_147990,
     author = {H. Weber},
     title = {Ueber singul\"are {Aufl\"osungen} partieller {Differentialgleichungen} erster {Ordnung.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {193--236},
     publisher = {mathdoc},
     volume = {66},
     year = {1866},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1866__66_147990/}
}