@book { DasKeltengrab,
    title = "Das Keltengrab",
    subtitle = "Thriller - Ein Illaun-Bowe-Thriller 1",
    author = "Patrick {Dunne} and Fred {Kinzel}",
    year = "2022",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/1059895"
}