@book { FranaisauxEtatsUnis19902005,
    title = "Français aux Etats-Unis (1990-2005)",
    subtitle = "Migration, langue, culture et économie",
    author = "François {Lagarde}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1102548"
}