@book { DasGeheimnisdesMithrasTempels,
    title = "Das Geheimnis des Mithras-Tempels",
    author = "Karola {Hagemann} and Ilka {Stitz}",
    year = "2021",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/1007114"
}