@book { EUaffairs,
    title = "EU affairs",
    author = "Willy {Beauvallet} and Cécile {Robert} and Elise {Roullaud}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b18678",
    url = "https://www.peterlang.com/document/1161813"
}