@book { DasGichtBuch,
    title = "Das Gicht-Buch",
    subtitle = "Alles, was Sie wissen müssen. Das können Sie selbst tun",
    author = "Dr. med. Heike {Bueß-Kovács}",
    year = "2019",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/500428"
}