@article{305381,
      recid = {305381},
      author = {Barbero, Alessandro.},
      title = {Charlemagne : father of a continent /},
      publisher = {University of California Press,},
      address = {Berkeley :},
      pages = {426 p. :},
      year = {2004},
      url = {http://library.usi.edu/record/305381},
}