Arain, Rafaqat, Shaikh, Riaz Ahmed, Shah, Safdar Ali, Shah, Sajjad Ali, Rafique, Saima, AND Ansari, Ahmed Masood. " Decoding the animated text-based captchas to verify their robustness against automated attacks" Mehran University Research Journal of Engineering and Technology [Online], Volume 42 Number 4 (5 October 2023)