Mozaffari, Mohammad Hamed, and Seyed Hamid Zahiri. “UNSUPERVISED DATA AND HISTOGRAM CLUSTERING USING INCLINED PLANES SYSTEM OPTIMIZATION ALGORITHM”. Image Analysis and Stereology, vol. 33, no. 1, Mar. 2014, pp. 65-74, https://doi.org/10.5566/ias.v33.p65-74.