@book { ErnhrungsratgebergesundeFette,
    title = "Ernährungsratgeber gesunde Fette",
    author = "Anne {Iburg}",
    year = "2022",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1183105"
}