MANKAR, V. H.; DAS, T. S.; SARKAR, S.; SARKAR, S. K. Redundant Wavelet Watermarking using Spread Spectrum Modulation. ELCVIA Electronic Letters on Computer Vision and Image Analysis, Cerdayola del Vallès, Spain, v. 7, n. 2, p. 1–10, 2008. DOI: 10.5565/rev/elcvia.267. Disponível em: https://elcvia.cvc.uab.cat/article/view/v7-n2-mankar-das-sarkar-et-al. Acesso em: 5 jun. 2025.