Do Van, Thanh, and Thi Thanh Luu Le. “AGGREGATION OF SYMBOLIC POSSIBILISTIC KNOWLEDGE BASES FROM THE POSTULATE POINT OF VIEW”. Journal of Computer Science and Cybernetics 36, no. 1 (February 27, 2020): 17–32. Accessed April 28, 2024. https://vjs.ac.vn/index.php/jcc/article/view/13188.