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no DOI — not checkedEffective implementation of the ε-constraint method in Multi-Objective Mathematical Programming problems
no DOI — not checkedAn improved version of the augmented ε-constraint method (AUGMECON2) for finding the exact pareto set in multi-objective integer programming problems
no DOI — not checkedGreen and Reverse Logistics Management Under Fuzziness
no DOI — not checked10.1016/j.tre.2018.01.006_b0120
no DOI — not checked10.1016/j.tre.2018.01.006_b0125
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