@book { IstheEuropeanUnionapeculiarpoliticalsystemoraverydevelopedinternationalorganization,
    title = "Is the European Union a peculiar political system or a very developed international organization?",
    author = "Felix {Wiebrecht}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656471783",
    url = "https://m.hausarbeiten.de/document/215582"
}