@book { DieschneSklavin,
    title = "Die schöne Sklavin",
    subtitle = "und andere Haremsgeschichten",
    author = "   {Anonymus}",
    year = "2018",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/434087"
}