Accessibility of CAPTCHA methods

Sajad Shirali-Shahreza, Mohammad Hassan Shirali-Shahreza. Accessibility of CAPTCHA methods. In Yan Chen, Alvaro A. Cárdenas, Rachel Greenstadt, Benjamin I. P. Rubinstein, editors, Proceedings of the 4th ACM Workshop on Security and Artificial Intelligence, AISec 2011, Chicago, IL, USA, October 21, 2011. pages 109-110, ACM, 2011. [doi]

@inproceedings{Shirali-ShahrezaS11a,
  title = {Accessibility of CAPTCHA methods},
  author = {Sajad Shirali-Shahreza and Mohammad Hassan Shirali-Shahreza},
  year = {2011},
  doi = {10.1145/2046684.2046704},
  url = {http://doi.acm.org/10.1145/2046684.2046704},
  researchr = {https://researchr.org/publication/Shirali-ShahrezaS11a},
  cites = {0},
  citedby = {0},
  pages = {109-110},
  booktitle = {Proceedings of the 4th ACM Workshop on Security and Artificial Intelligence, AISec 2011, Chicago, IL, USA, October 21, 2011},
  editor = {Yan Chen and Alvaro A. Cárdenas and Rachel Greenstadt and Benjamin I. P. Rubinstein},
  publisher = {ACM},
  isbn = {978-1-4503-1003-1},
}