@book { DieSchattenderToten,
    title = "Die Schatten der Toten",
    subtitle = "Roman",
    author = "Robert {Goddard} and Werner {Waldhoff}",
    year = "2020",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/507501"
}