@book { Lesfranaisrgionauxdanslespacefrancophone,
    title = "Les français régionaux dans l’espace francophone",
    author = "Marie-Madeleine {Bertucci}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04075-3",
    url = "https://www.peterlang.com/document/1047992"
}