@book { PlatonsHhlengleichnis,
    title = "Platons Höhlengleichnis",
    author = "Kristina {Wallner}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640194469",
    url = "https://www.hausarbeiten.de/document/117037"
}