@book { DerFreieGeistinNietzschesAlsosprachZarathustra,
    title = "Der Freie Geist in Nietzsches »Also sprach Zarathustra«",
    author = "Martin {Kutschke}",
    year = "2005",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638441896",
    url = "https://www.hausarbeiten.de/document/47190"
}