@book { DasUnbehagendesHelden,
    title = "Das Unbehagen des Helden",
    subtitle = "Schuld und Scham in Hartmanns von Aue Erec",
    author = "Irmgard {Rüsenberg}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099815"
}