Минаев, Ю. Н., О. Ю. Филимонова, and Ю. И. Минаева. “Comparative Analysis of the Structural Characteristics of Clear and Fuzzy Sets”. Problems of Informatization and Control 1, no. 41 (March 25, 2013): 55–60. Accessed June 14, 2026. http://jrnl.kai.edu.ua/index.php/PIU/article/view/7206.