ELSHARKAWY, M. I. Using Quaternion Fourier Transform in Steganography Systems. International Journal of Communication Networks and Information Security (IJCNIS), [S. l.], v. 10, n. 2, 2022. DOI: 10.17762/ijcnis.v10i2.3266. Disponível em: https://www.ijcnis.org/index.php/ijcnis/article/view/3266. Acesso em: 1 may. 2024.