@book { HerrschaftundMachtinHartmannsvonAuesIwein,
    title = "Herrschaft und Macht in Hartmanns von Aues Iwein",
    author = "Till {Keßler}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638015820",
    url = "https://www.hausarbeiten.de/document/85604"
}