@book { ElOesterecuperado,
    title = "El Oeste recuperado",
    author = "Martin {Simonson}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/b15110",
    url = "https://www.peterlang.com/document/1057689"
}