@book { DermagischePortalkreisIIIGesamtausgabe,
    title = "Der magische Portalkreis I&II - Gesamtausgabe",
    author = "Jörg M. {Dietrich} and Jörg M. {Dietrich} and Nicolas P. R. {Dietrich}",
    year = "2024",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1459444"
}