@book { Fuentesellada,
    title = "...Fuente sellada...",
    subtitle = "Aproximaciones al discurso manierista en la lírica española",
    author = "Hans {Felten} and David {Nelting}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1092050"
}