@book { NellSweeneyundderdunkleVerdacht,
    title = "Nell Sweeney und der dunkle Verdacht",
    author = "P.B. {Ryan}",
    year = "2021",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/489212"
}