A fuzzy inequality evaluation approach for measuring the relative efficiency. - Xiao-Li Meng; Liu-Tang Gong; Jen-Chih Yao (J. Intell. Fuzzy Syst., 2019)

A fuzzy evaluation approach with the quasi-ordered set: evaluating the efficiency of decision making units. - Xiao-Li Meng; Liu-Tang Gong; Jen-Chih Yao (Fuzzy Optim. Decis. Mak., 2020)