@book { RezeptklassikerLowFat,
    title = "Rezeptklassiker Low Fat",
    subtitle = "Fettarm kochen - Gesund Genießen",
    author = "Bettina {Snowdon}",
    year = "2019",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/456360"
}