@book { VonSchattenundBildernzurWahrheit,
    title = "Von Schatten und Bildern zur Wahrheit",
    author = "Jutta {Graf}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106974"
}