@book { TdlicherZufall,
    title = "Tödlicher Zufall",
    subtitle = "Ein Fall für Biene & Blume",
    author = "Kate {Frey}",
    year = "2021",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Germany",
    url = "https://shop.digitalpublishers.de/document/1140372"
}