CAPTCHA Usability and Performance, How to Measure the Usability Level of Human Interactive Applications Quantitatively and Qualitatively? - Seyed Mohammad RezaSaadat Beheshti; Panos Liatsis (DeSE, 2015)

How humans can help computers to solve an artificial problem? - Seyed Mohammad RezaSaadat Beheshti; Panos Liatsis (IWSSIP, 2015)

VICAP: Using the mechanisms of trans-saccadic memory to distinguish between humans and machines. - Seyed Mohammad RezaSaadat Beheshti; Panos Liatsis (IWSSIP, 2015)

A CAPTCHA model based on visual psychophysics: Using the brain to distinguish between human users and automated computer bots. - Seyed Mohammad RezaSaadat Beheshti; Panos Liatsis; Muttukrishnan Rajarajan (Comput. Secur., 2017)