@book { EinfachzuckerfreiDasZuckerfreiKochbuch,
    title = "Einfach zuckerfrei - Das Zuckerfrei Kochbuch",
    author = "Leonardo Oliver {Bassard}",
    year = "2021",
    publisher = "Magische Pfanne",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1022456"
}