Jeff Yan, Ahmad Salah El Ahmad. A low-cost attack on a Microsoft captcha. In Peng Ning, Paul F. Syverson, Somesh Jha, editors, Proceedings of the 2008 ACM Conference on Computer and Communications Security, CCS 2008, Alexandria, Virginia, USA, October 27-31, 2008. pages 543-554, ACM, 2008. [doi]
@inproceedings{YanA08, title = {A low-cost attack on a Microsoft captcha}, author = {Jeff Yan and Ahmad Salah El Ahmad}, year = {2008}, doi = {10.1145/1455770.1455839}, url = {http://doi.acm.org/10.1145/1455770.1455839}, researchr = {https://researchr.org/publication/YanA08}, cites = {0}, citedby = {0}, pages = {543-554}, booktitle = {Proceedings of the 2008 ACM Conference on Computer and Communications Security, CCS 2008, Alexandria, Virginia, USA, October 27-31, 2008}, editor = {Peng Ning and Paul F. Syverson and Somesh Jha}, publisher = {ACM}, isbn = {978-1-59593-810-7}, }