Digital Watermarking for a Bank Card Authentication System. European Journal of Electrical Engineering and Computer Science, [S. l.], v. 9, n. 1, p. 1–7, 2025. DOI: 10.24018/ejece.2025.9.1.669. Disponível em: https://www.ejece.org/index.php/ejece/article/view/669. Acesso em: 1 nov. 2025.