@book { ParlamentarismusinDeutschland,
    title = "Parlamentarismus in Deutschland",
    author = "Tobias {Wolf}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640740314",
    url = "https://www.hausarbeiten.de/document/160939"
}