H. R. Biswas, R. Rani, S. Islam, and U. H. Khatun, “Different Types of Maps Route to Chaos in Bi-infinite Symbol Space with Strong Chaotic Features”, JVTSD, vol. 9, no. 1, pp. 97–104, Aug. 2026, doi: 10.5890/JVTSD.2025.03.007.