@book { AgnesMunroundderverrterischeBrief,
    title = "Agnes Munro und der verräterische Brief",
    author = "Dorothea {Stiller}",
    year = "2023",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/1313048"
}