List of Articles Bi-objective optimization Open Access Article Abstract Page Full-Text 1 - مساله مکان یابی هاب تک تخصیصی ظرفیت دار دو هدفه با فرض ایمنی مسیرها فروغ معین مقدس فرزانه فولادی 10.30495/ijim.2021.19155 Open Access Article Abstract Page Full-Text 2 - A Non-dominated Sorting Ant Colony Optimization Algorithm Approach to the Bi-objective Multi-vehicle Allocation of Customers to Distribution Centers Jafar Bagherinejad Mina Dehghani 10.22094/joie.2016.230 Open Access Article Abstract Page Full-Text 3 - A Bi-objective Optimization for Vendor Managed Inventory Model Amir Hossein Niknamfar Seyed Hamid Reza Pasandideh Open Access Article Abstract Page Full-Text 4 - A Comparison of NSGA II and MOSA for Solving Multi-depots Time-dependent Vehicle Routing Problem with Heterogeneous Fleet Behrouz Afshar-nadjafi Arian Razmi-farooji