@book { VetospielerTheorieinderEuropischenUnion,
    title = "Vetospieler-Theorie in der Europäischen Union",
    author = "Sebastian {Liebram}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656549291",
    url = "https://www.hausarbeiten.de/document/265389"
}