@book { RisikomanagementundRisikocontrolling,
    title = "Risikomanagement und Risikocontrolling",
    author = "Marc {Diederichs}",
    year = "2023",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1368100"
}