Lân, Vũ Như, Vũ Chấn Hưng, and Đặng Thành Phu. “The Technique of Hedge Algebras for Rule-Based System Identification”. <i>Journal of Computer Science and Cybernetics</i> 22, no. 4 (July 23, 2012): 301–306. Accessed December 5, 2025. https://vjs.ac.vn/jcc/article/view/1409.