@book { TheEUInternalMarketinComparativePerspective,
    title = "The EU Internal Market in Comparative Perspective",
    author = "Jacques {Pelkmans} and Dominik {Hanf} and Michele {Chang}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6115-8",
    url = "https://www.peterlang.com/document/1043986"
}