@book { FutureofTheEuropeanUnionIntegration,
    title = "Future of The European Union Integration:",
    author = "Altuğ {Günar} and Burak {Darici}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16683",
    url = "https://www.peterlang.com/document/1111408"
}