@book { TransnationalLabourRegulation,
    title = "Transnational Labour Regulation",
    author = "Kerstin {Ahlberg} and Brian {Bercusson} and Niklas {Bruun} and Haris {Kountouros}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1104475"
}