@book { GuteTagetrotzKrebs,
    title = "Gute Tage trotz Krebs!",
    subtitle = "Ein humorvolles Ausfüll- und Mutmachbuch rund um eine doofe Diagnose. Empfohlen von Nana Recover your smile e. V.",
    author = "Sabine {Dinkel}",
    year = "2020",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/924921"
}