@book{id_7921, author = "Lindemann, Ferdinand", title = "Über die Differentialgleichung y'=Ayp +Byq", year = "1919", address = "München", publisher = "Verl.d.Bayer.Akad.d.Wiss.", series = "Sitzungsbericht der Bayerischen Akademie der Wissenschaften", volume = "1919,16", url = "http://publikationen.badw.de/de/003395427", }