Smyrlis, P. N., D. C. Tsouros, and M. G. Tsipouras. “Constrained K-Means Classification”. Engineering, Technology & Applied Science Research 8, no. 4 (August 18, 2018): 3203–3208. Accessed March 14, 2026. https://etasr.com/index.php/ETASR/article/view/2149.