@book { HerzklopfeninHiddenFalls,
    title = "Herzklopfen in Hidden Falls",
    author = "Mariah {Stewart} and Silja {Mende}",
    year = "2021",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/900221"
}