@book { DiekniglicheSpionin,
    title = "Die königliche Spionin",
    author = "Rhys {Bowen} and Sarah {Schemske}",
    year = "2019",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/494358"
}