Adlene Ebenezer, S. Karthik Vignesh, B. Sai Kishore, A. Gokul. “Dynamic Two Layer Based Clustering for Smart Vehicle Coordination in Bi-Directional Road Scenario”. International Journal of Control and Automation, Vol. 13, no. 4, May 2020, pp. 252 -67, http://sersc.org/journals/index.php/IJCA/article/view/16076.