@book { GaldsCienaosdeactualidad,
    title = "Galdós. Cien años de actualidad",
    author = "María Ángeles {Varela Olea}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18850",
    url = "https://www.peterlang.com/document/1149177"
}