@book { ZukunftderPolitischenBildung,
    title = "Zukunft der Politischen Bildung",
    author = "Gerhard {William}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832498979",
    url = "https://m.diplom.de/document/225014"
}