@book { Zonasdecontactoenelmundohispnico,
    title = "Zonas de contacto en el mundo hispánico",
    author = "Marco Thomas {Bosshard} and Laura {Morgenthaler García}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15803",
    url = "https://www.peterlang.com/document/1110792"
}