@article{MM2_1973__8_154135,
     author = {Wolf von Wahl},
     title = {\"Uber quasilineare elliptische {Differentialgleichungen} in der {Ebene.}},
     journal = {Manuscripta mathematica},
     pages = {59--68},
     publisher = {mathdoc},
     volume = {8},
     year = {1973},
     zbl = {0243.35041},
     url = {http://geodesic.mathdoc.fr/item/MM2_1973__8_154135/}
}