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In this paper, an integer linear programming formulation is developed for a novel fuzzy multi-period multi-depot vehicle routing problem. The novelty belongs to both the model and the solution methodology. In the proposed model, vehicles are not forced to return to their starting depots. The fuzzy problem is transformed into a mixed-integer programming problem by applying credibility measure whose optimal solution is an (α,β)-credibility optimal solution to the fuzzy problem. To solve thedoi:10.22034/ijsom.2021.2.1 doaj:f3bd8187a3714d0eb6d45a4230328519 fatcat:7eaqa2cjwbh2tj3wunjt4juzzi