1. Manuale di economica polittica;Pareto,1906
2. Koski J. Multicriteria optimization in structural design. In: Proceedings of the international symposium on optimum structural design 11th ONR naval structural mechanics symposium, Tucson, AZ; 1981.
3. Multicriterion optimization in structural design. New directions in optimum structural design;Koski,1984
4. Fuzzy sets;Zadeh;Inform Control,1967
5. Fuzzy programming and linear programming with several objective functions;Zimmermann;Fuzzy Set Syst,1978