SHIKHA GUPTA; ARUN AGARWAL. IMPROVE APPROCHES PCA AND FFNN BASED OFFLINE SIGNATURE RECOGNITION. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 4, p. 2161–2167, 2018. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/5559. Acesso em: 6 jul. 2025.