@book { Cortesavalorizadora,
    title = "Cortesía valorizadora",
    author = "María Jesús {Barros García}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14964",
    url = "https://www.peterlang.com/document/1110709"
}