@book { Werliebtstirbtzweimal,
    title = "Wer liebt, stirbt zweimal",
    author = "Monika {Detering}",
    year = "2016",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/320946"
}