@book { LEuropesyndicaleauquotidien,
    title = "L’Europe syndicale au quotidien",
    author = "Christian {Dufour} and Adelheid {Hege}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1093001"
}