@inproceedings{shirali2008deaf,
  author    = {S. Shirali-Shahreza and M. Shirali-Shahreza},
  title     = {A New Human Interactive Proofs System for Deaf Persons},
  booktitle = {Proceedings of the 5th International Conference on Information Technology: New Generations (ITNG 2008)},
  address   = {Las Vegas, Nevada, USA},
  month     = apr,
  year      = {2008},
  pages     = {807--810},
  doi       = {10.1109/ITNG.2008.17},
  url       = {https://doi.org/10.1109/ITNG.2008.17}
}