Chi-Tsuen Yeh. Approximations by Interval, Triangular and Trapezoidal Fuzzy Numbers. In João Paulo Carvalho, Didier Dubois, Uzay Kaymak, João Miguel da Costa Sousa, editors, Proceedings of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference, Lisbon, Portugal, July 20-24, 2009. pages 143-148, 2009. [doi]
Abstract is missing.