@book { DasPriesterBildimLebenundWerkdesOrigenes,
    title = "Das Priester-Bild im Leben und Werk des Origenes",
    author = "Theo {Schäfer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070280"
}