@book { LanguesencontactLanguesencontraste, title = "Langues en contact – Langues en contraste", author = "Stéphane {Borel}", year = "2012", publisher = "Peter Lang Verlag", address = "Lausanne, Switzerland", doi = "10.3726/978-3-0351-0374-8", url = "https://www.peterlang.com/document/1052727" }