@article{MAN_1951__123_160234,
     author = {H. R\"ohrl},
     title = {\"Uber {Differentialsysteme,} welche aus multiplikativen {Klassen} mit exponentiellen {Singularit\"aten} entspringen. {I.}},
     journal = {Mathematische Annalen},
     pages = {53--75},
     publisher = {mathdoc},
     volume = {123},
     year = {1951},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1951__123_160234/}
}