List of Articles Multi-period Open Access Article Abstract Page Full-Text 1 - A Three-Echelon Multi-Objective Multi-Period Multi-Product Supply Chain Network Design Problem: A Goal Programming Approach Ashkan Hafezalkotob Kaveh Khalili-Damghani Seyed Sajad Ghashami 10.22094/joie.2016.262 20.1001.1.22519904.2017.10.21.8.1 Open Access Article Abstract Page Full-Text 2 - Building a Multi-Objective Model for Multi-Product Multi-Period Production Planning with Controllable Processing Times: A Real Case Problem Mir Bahadorgholi Aryanezhad Mehdi Karimi-Nasab Seyed Mohammad Taghi Fatemi Ghomi Open Access Article Abstract Page Full-Text 3 - A Multi-Periodic Multi-Product Inventory Control Problem with Discount: GA Optimization Algorithm Seyed Mohsen Mousavi Seyed Hamidreza Pasandideh