DAYANAND; JEBERSON, Wilson. Analysis of CAPTCHA Breakage- Employing Object Detection Deep Learning Methods to Identify CAPTCHA Characters. International Journal of Computer Sciences and Engineering, [S. l.], v. 6, n. 12, p. 993–998, 2018. DOI: 10.26438/ijcse/v6i12.993998. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/3992. Acesso em: 2 feb. 2026.