@book { WasdamalsalsunglaublicheKhnheiterschien,
    title = "«Was damals als unglaubliche Kühnheit erschien»",
    author = "Carmen {Ottner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089554"
}