@book { Lanarrativadelaunificacinalemana,
    title = "La narrativa de la unificación alemana",
    author = "Manuel {Maldonado Aleman}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1098940"
}