@book { DaspolitischeSystemFrankreichs,
    title = "Das politische System Frankreichs",
    author = "Stephan {Fischer}",
    year = "2002",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638112390",
    url = "https://www.hausarbeiten.de/document/2017"
}