@book { Newregionalismtendenciesandtheimpactonworldtrade,
    title = "New regionalism tendencies and the impact on world trade",
    author = "Patrick {Daum}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656181507",
    url = "https://www.hausarbeiten.de/document/193127"
}