Chiang K and L Shiang-Tai (2000). “Fuzzy Efficiency Measures in Data Envelopment Analysis.” Fuzzy Sets and Systems 113(3): 427-437.
Chiang K and L Shiang-Tai (2000). “Fuzzy Efficiency Measures in Data Envelopment Analysis.” Fuzzy Sets and Systems 113(3): 427-437.