@book { HerzeloydealsMediumderZeitenwendeinWolframsvonEschenbachParzival,
    title = "Herzeloyde als Medium der Zeitenwende in Wolframs von Eschenbach Parzival",
    author = "Agathe {Schreieder}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640857494",
    url = "https://www.hausarbeiten.de/document/168558"
}