@book { GuteTagetrotzKrebs,
    title = "Gute Tage trotz Krebs!",
    author = "Sabine {Dinkel}",
    year = "2020",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/924921"
}