@misc{lan-97-zipf,
  author = {Gabriel Landini},
  title = {{Zipf}'s Laws in the {Voynich} {Manuscript}},
  url = {http://web.bham.ac.uk/G.Landini/evmt/zipf.htm},
  howpublished = {WWW document},
  year = 1997,
  month = nov
}