@book { berblickberdasThemengebietderPolitikberatung,
    title = "Überblick über das Themengebiet der Politikberatung",
    author = "Gabriele {Beyer}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656387626",
    url = "https://www.hausarbeiten.de/document/211081"
}