@book { 111RezeptefrschmerzfreieGelenke,
    title = "111 Rezepte für schmerzfreie Gelenke",
    author = "Dipl. Oec. Troph. Anne {Iburg}",
    year = "2023",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1390757"
}