@article{Buschmann2002,
  author    = {Buschmann, Albrecht},
  title     = {Presentacion},
  issn      = {1577-3388},
  year      = {2002},
  language  = {en}
}
@article{Buschmann1994,
  author    = {Buschmann, Albrecht},
  title     = {La novela negra : cambio social reflejado en un g{\´e}nero popular},
  year      = {1994},
  language  = {en}
}