1. Multiobjective Decision Making: Theory and Methodology;Chankong,1980
2. Linear programming with fuzzy data;Dubois,1987
3. Fuzzy Sets and Systems: Theory and Application;Dubois,1980
4. Ranking fuzzy numbers in the setting of possibility theory;Dubois;Inform. Sci.,1983
5. Introduction to Sensitivity and Stability Analysis in Nonlinear Programming;Fiacco,1983