JUMARIE, GUY. “A (NEW) MEASURE OF FUZZY UNCERTAINTY VIA INTERVAL ANALYSIS, WHICH IS FULLY CONSISTENT WITH SHANNON THEORY”. Tamkang Journal of Mathematics 22, no. 3 (September 1, 1991): 223–241. Accessed May 6, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4606.