@book { OperationDiamant,
    title = "Operation Diamant",
    subtitle = "Thriller | Atemlose Spannung des britischen Bestsellerautors",
    author = "Desmond {Bagley} and Ulrich {Günther}",
    year = "2025",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/1502997"
}