List of Articles Hung Nguyen Article 1 - Why Linear (and Piecewise Linear) Models Often Successfully Describe Complex Non-Linear Economic and Financial Phenomena: A~Fuzzy-Based Explanation 10.30495/tfss.2023.1972564.1054 Hung Nguyen Vladik Kreinovich Transactions on Fuzzy Sets and Systems , Issue 3 , Year , Spring_Summer 2023