Abhrendu Bhattacharya, Amit R. Welekar, Paramita Sarkar, Rajesh Bose, Sandip Roy, Achyut Mitra. "Adaptive bit placement for dual biometric using signature and finger print for DWT-DCT picture steganography." Scientific Reports (2026). https://doi.org/10.1038/s41598-026-37827-x