@book { LoslibrosdelenguasdeJuanngeldeZumaran,
    title = "Los libros de lenguas de Juan Ángel de Zumaran",
    author = "Maria José {Corvo Sánchez}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101773"
}