BonisS04'

@article{DBLP:journals/tcs/BonisS04,
  author    = {Annalisa De Bonis and
               Alfredo De Santis},
  title     = {Randomness in secret sharing and visual cryptography schemes},
  journal   = {Theor. Comput. Sci.},
  volume    = {314},
  number    = {3},
  year      = {2004},
  pages     = {351-374},
  ee        = {http://dx.doi.org/10.1016/j.tcs.2003.12.018},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}