@book { Laktosefreibacken,
    title = "Laktosefrei backen",
    subtitle = "Köstlichkeiten von süß bis herzhaft. Die besten Tipps & Rezepte von Ich muss backen",
    author = "Eva {Dragosits}",
    year = "2023",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1319883"
}