@book { TheConventionontheFutureofEurope,
    title = "The Convention on the Future of Europe",
    author = "Francesco {Marchi}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6518-7",
    url = "https://www.peterlang.com/document/1053904"
}