Tran, Dang Cong, and Zhijian Wu. “A New Approach of Dynamic Clustering Based on Particle Swarm Optimization and Application in Image Segmentation”. COMPUTING AND INFORMATICS, vol. 36, no. 3, July 2017, pp. 637-63, https://www.cai.sk/ojs/index.php/cai/article/view/2017_3_637.