Phuong, P.T.M., Thong, P.H. and Son, L.H. 2018. THEORETICAL ANALYSIS OF PICTURE FUZZY CLUSTERING: CONVERGENCE AND PROPERTY. Journal of Computer Science and Cybernetics. 34, 1 (Aug. 2018), 17–32. DOI:https://doi.org/10.15625/1813-9663/34/1/12725.