Murugan, J., and P. Muthukumar. 2026. “Audio Signal Encryption Using Recursive Backstepping Technique for Tracking Controlling and Synchronizing Improved Sprott-C Hyperchaotic Systems”. Discontinuity, Nonlinearity, and Complexity 16 (1): 65-77. https://doi.org/10.5890/DNC.2027.03.005.