@article{223162,
      author = {Singh, Simon.},
      url = {http://library.usi.edu/record/223162},
      title = {The code book : the evolution of secrecy from Mary Queen  of Scots to quantum cryptography /},
      publisher = {Doubleday,},
      recid = {223162},
      pages = {xiii, 402 p. :},
      address = {New York :},
      year = {1999},
}