@book { OperationWelcome,
    title = "Operation Welcome",
    subtitle = "How Strasbourg Remained a Seat of European Institutions, 1949–1979",
    author = "Claudia {Leskien}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6595-8",
    url = "https://www.peterlang.com/document/1053962"
}