Dug Hun Hong Fuzzy measures for a correlation coefficient of fuzzy numbers under <i>T</i><sub>W</sub>(the weakest <i>t</i>-norm)-based fuzzy arithmetic operations. 150-160 2006 176 Inf. Sci. 2 http://dx.doi.org/10.1016/j.ins.2004.11.005 db/journals/isci/isci176.html#Hong06