@book { PolitikverdrossenheitinDeutschland,
    title = "Politikverdrossenheit in Deutschland",
    author = "Fabian {Ellermann}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638025867",
    url = "https://www.hausarbeiten.de/document/89166"
}