@book { TemasyvariacionesdelpoemaextensomodernoenMxico,
    title = "Temas y variaciones del poema extenso moderno en México",
    author = "Óscar Javier {González Molina}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17092",
    url = "https://www.peterlang.com/document/1111340"
}