@article{AFM_1963_316-335_a3,
     author = {Jouko Manninen},
     title = {\"Uber das {Existenzgebiet} von {Integralen} partieller {Differentialgleichungen} erster {Ordnung}},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {316-335},
     year = {1963},
     doi = {10.5186/aasfm.1963.332},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1963.332/}
}