@article{MZ_1980__170_172909,
     author = {Norbert Steinmetz},
     title = {\"Uber die faktorisierbaren {L\"osungen} gew\"ohnlicher {Differentialgleichungen.}},
     journal = {Mathematische Zeitschrift},
     pages = {169--180},
     publisher = {mathdoc},
     volume = {170},
     year = {1980},
     zbl = {0425.34006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1980__170_172909/}
}