List of Articles Abulfazl Asadollahi Article 1 - Developing a New Bi-Objective Functions Model for a Hierarchical Location-Allocation Problem Using the Queuing Theory and Mathematical Programming 20.1001.1.22519904.2019.12.2.12.1 10.22094/joie.2018.350.0 Parham Azimi Abulfazl Asadollahi Journal of Optimization in Industrial Engineering , Issue 26 , Year , Autumn 2019
