@book { LaudineinHartmannsIwein,
    title = "Laudine in Hartmanns Iwein",
    author = "Katrin  {Bogner}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640910816",
    url = "https://www.hausarbeiten.de/document/171481"
}