@book { HtrognitlinguistiqueLinguisticHeterogeneity,
    title = "Hétérogénéité linguistique / Linguistic Heterogeneity",
    author = "Ludovic {Ibarrondo} and Jürgen {Erfurt}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20275",
    url = "https://www.peterlang.com/document/1290506"
}