@book { RudolfSteinerunddieWaldorfpdagogik,
    title = "Rudolf Steiner und die Waldorfpädagogik",
    author = "Sandra {Hutter}",
    year = "2001",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640028351",
    url = "https://www.hausarbeiten.de/document/104505"
}