Vu Duc Nguyen, Yang-Wai Chow, Willy Susilo. Breaking an Animated CAPTCHA Scheme. In Feng Bao, Pierangela Samarati, Jianying Zhou, editors, Applied Cryptography and Network Security - 10th International Conference, ACNS 2012, Singapore, June 26-29, 2012. Proceedings. Volume 7341 of Lecture Notes in Computer Science, pages 12-29, Springer, 2012. [doi]
@inproceedings{NguyenCS12-0,
  title = {Breaking an Animated CAPTCHA Scheme},
  author = {Vu Duc Nguyen and Yang-Wai Chow and Willy Susilo},
  year = {2012},
  doi = {10.1007/978-3-642-31284-7_2},
  url = {http://dx.doi.org/10.1007/978-3-642-31284-7_2},
  researchr = {https://researchr.org/publication/NguyenCS12-0},
  cites = {0},
  citedby = {0},
  pages = {12-29},
  booktitle = {Applied Cryptography and Network Security - 10th International Conference, ACNS 2012, Singapore, June 26-29, 2012. Proceedings},
  editor = {Feng Bao and Pierangela Samarati and Jianying Zhou},
  volume = {7341},
  series = {Lecture Notes in Computer Science},
  publisher = {Springer},
  isbn = {978-3-642-31283-0},
}