@article{17984,
  author = {Shu-Fen Tu and Ching-Sheng Hsu},
  title = {A Joint Ownership Protection Scheme for Digital Images Based on Visual Cryptography},
  year = {2012},
  journal = {The International Arab Journal of Information Technology},
  volume = {9},
  month = {May 2012},
  language = {eng},
}