@book { FriedrichLeopoldStolbergsJugendpoesie,
    title = "Friedrich Leopold Stolbergs Jugendpoesie",
    subtitle = "Nachdruck der Ausgabe Berlin 1893.",
    author = "Wilhelm {Keiper}",
    year = "1973",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069321"
}