@article{MAN_1951__124_160270,
     author = {H. R\"ohrl},
     title = {\"Uber {Differentialsysteme,} welche aus multiplikativen {Klassen} mit exponentiellen {Singularit\"aten} entspringen. {II.}},
     journal = {Mathematische Annalen},
     pages = {187--218},
     publisher = {mathdoc},
     volume = {124},
     year = {1951},
     zbl = {0046.08304},
     url = {http://geodesic.mathdoc.fr/item/MAN_1951__124_160270/}
}