R NEELIMA DEVI; B.RANJITH. Extracting Spread-Spectrum Hidden Data from Picture Representation. International Journal of Computer Engineering in Research Trends, [S. l.], v. 1, n. 6, p. 405–408, 2014. Disponível em: https://www.ijcert.org/index.php/ijcert/article/view/121. Acesso em: 26 sep. 2026.