@book { Gichtnatrlichbehandeln,
    title = "Gicht natürlich behandeln",
    author = "Dr. med. Heike {Bueß-Kovács}",
    year = "2015",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403930"
}