@article{MZ_1968__107_171073,
     author = {Albert Schneider},
     title = {Untersuchungen \"uber singul\"are reelle {S-hermitesche} {Differentialgleichungssysteme} im {Normalfall.}},
     journal = {Mathematische Zeitschrift},
     pages = {271--296},
     publisher = {mathdoc},
     volume = {107},
     year = {1968},
     zbl = {0183.36201},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__107_171073/}
}