7Chakhar S, Martel J M. Enhancing geographical information system capabilities with multi-criteria evaluation functions. Journal of Geographic Information and Decision Analysis, 2003, 7(2): 47-71.
8Yager R R. On ordered weighted averaging aggregation operators in multi-criteria decision making. IEEE Transactions on Systems, Man and Cybernetics, 1988, 18(1): 183-190.
9Yager R R. Quantifier guided aggregation using OWA operation. International Journal of Intelligent Systems, 1996, 11 (1): 49-73.
10Makropoulos C K, Butler D, Maksimovic C. Fuzzy logic spatial decision support system for urban water management. J. Water Resour. Plng. and Mgmt, 2003, 129(1): 69-77.