@book { DieEuropischeUnioninderPolitikverflechtungsfalle,
    title = "Die Europäische Union in der Politikverflechtungsfalle",
    author = "Marco {Baumgarten}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656236597",
    url = "https://www.hausarbeiten.de/document/197476"
}