@book { Lalenguadelturismo,
    title = "La lengua del turismo",
    author = "Maria Vittoria {Calvi} and Giovanna {Mapelli}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0293-2",
    url = "https://www.peterlang.com/document/1052681"
}