@book { LesmigrationsdutravailenEurope,
    title = "Les migrations du travail en Europe",
    author = "Klaus {Morgenroth} and Paul {Vaiss} and Joseph {Farré}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1096710"
}