@book { Lefranaisparldansledomainefrancoprovenal,
    title = "Le français parlé dans le domaine francoprovençal",
    author = "Pascal {Singy}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1094768"
}