@article{AFM_1966_371-390_a11,
     author = {H. Wittich},
     title = {Zur {Theorie} linearer {Differentialgleichungen} im {Komplexen}},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {371-390},
     year = {1966},
     doi = {10.5186/aasfm.1966.379},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1966.379/}
}