@article{PIM_1952_S_S_IV_04_a5,
     author = {E. Kamke},
     title = {\"Uber {Den} {Existenzbereich} {Der} {Integrale} {Der} {Quasilinearen} {Differentalgleichung} 1. {Ordnung}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {61 },
     publisher = {mathdoc},
     volume = {_S_S_IV},
     number = {04},
     year = {1952},
     url = {http://geodesic.mathdoc.fr/item/PIM_1952_S_S_IV_04_a5/}
}