@book { RegionaleWirtschaftsverbndeNAFTAMERCOSURASEANundEU,
    title = "Regionale Wirtschaftsverbände: NAFTA, MERCOSUR, ASEAN und EU",
    author = "Alois {Maichel}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640516148",
    url = "https://www.hausarbeiten.de/document/142432"
}