@book { FormenderDarstellunginHartmannsIwein,
    title = "Formen der Darstellung in Hartmanns «Iwein»",
    author = "Marie Theres {Nölle}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069548"
}