@book { ZuWeihnachteneinMillionr,
    title = "Zu Weihnachten ein Millionär",
    author = "Mia {Caron}",
    year = "2020",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1160439"
}