@article{MAN_1957__133_160532,
     author = {H. R\"ohrl},
     title = {Das {Riemann-Hilbertsche} {Problem} der {Theorie} der linearen {Differentialgleichungen.}},
     journal = {Mathematische Annalen},
     pages = {1--25},
     publisher = {mathdoc},
     volume = {133},
     year = {1957},
     zbl = {0088.06001},
     url = {http://geodesic.mathdoc.fr/item/MAN_1957__133_160532/}
}