@book { DasGeheimnisdesAnfangs,
    title = "Das Geheimnis des Anfangs",
    author = "Wolfgang {Neuser} and Anne {Reichold}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099331"
}