@article{282622,
      recid = {282622},
      author = {Melia, Fulvio.},
      title = {The edge of infinity : supermassive black holes in the  universe /},
      publisher = {Cambridge University Press,},
      address = {Cambridge ;},
      pages = {ix, 148 p. :},
      year = {2003},
      url = {http://library.usi.edu/record/282622},
}