@book { NewYorkGrandHotel,
    title = "New York Grand Hotel",
    subtitle = "Wie alles begann",
    author = "Karin {Bell}",
    year = "2025",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/1618751"
}