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2. Design and implementation of an interactive system to solve fuzzy optimization problem;Cadenas,1993
3. Linear programming problems and ranking of fuzzy numbers;Campos;Fuzzy Sets and Systems,1989
4. FPLP — a package for fuzzy and parametric linear programming problems;Chanas,1991
5. FLIP: multiobjective fuzzy linear programming software with graphical facilities;Czyzak,1991