Adaptive steganography with increased embedding capacity for new generation of steganographic systems. - Sos S. Agaian; Ronnie R. Sifuentes (Image Processing: Algorithms and Systems, 2006)

Key Dependent Covert Communication System Using Fibonacci P-Codes. - Sos S. Agaian; Ravindranath Cherukuri; Ronnie R. Sifuentes (SoSE, 2007)