Author: Ahmad Salah El Ahmad

Publications

Publication period start: 2008
Number of co-authors: 1

Co-authors

Number of publications with favourite co-authors
Jeff Yan
1

Productive Colleagues

Most productive colleagues in number of publications
Jeff Yan
4

Publications

Yan, Jeff, Ahmad, Ahmad Salah El (2008): Usability of CAPTCHAs or usability issues in CAPTCHA design. In: Proceedings of the 2008 Symposium on Usable Privacy and Security , 2008, . pp. 44-52. https://doi.acm.org/10.1145/1408664.1408671

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