@book { DieLegendevonPrinzMadocHistorischerRoman,
    title = "Die Legende von Prinz Madoc: Historischer Roman",
    author = "W. A. {Hary} and Alfred {Bekker} and Hendrik M. {Bekker}",
    year = "2023",
    publisher = "Uksak E-Books",
    address = "Lengerich, Deutschland",
    url = "https://uksakebooks.grin.com/document/1406134"
}