H. Caballero Hernández, V. Muñoz Jiménez, M. A. Ramos Corchado, A. Morales Reyes, and M. Romero Huertas, “A Review of Steganography Techniques for Digital Information Transmission for Secure Channels with Digital Images”, IEEE LAT AM T, vol. 17, no. 11, pp. 1831–1842, Dec. 2019.