Levashenko, Vitaly, Oleksii Liashenko, and Heorhii Kuchuk. “Building Decision Support Systems Based on Fuzzy Data”. Advanced Information Systems 4, no. 4 (December 14, 2020): 48–56. Accessed April 3, 2025. http://ais.khpi.edu.ua/article/view/2522-9052.2020.4.07.