@book { Relazionilinguistiche,
    title = "Relazioni linguistiche",
    author = "Martin {Becker} and Ludwig {Fesenmeier}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05869-7",
    url = "https://www.peterlang.com/document/1049548"
}