@book { GlcklichlebenBand1FreundlichkeitundAnstand,
    title = "Glücklich leben - Band 1: Freundlichkeit und Anstand",
    author = "Michael {von Känel}",
    year = "2023",
    publisher = "denkmalnach",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1352043"
}