List of Articles Multi-objective meta-heuristic algorithms Open Access Article Abstract Page Full-Text 1 - Designing an Optimal Recycling Model in a Four-Level Closed-Loop Supply Chain by Queuing Theory and Robust Planning (Case Study: Paper Industry) Mahdi Alizadeh Beromi Mohammad Ali Afshar Kazemi Mohammadali Keramati Abbass Toloie Ashlaghi 10.30495/imj.2023.1993565.1867 Open Access Article Abstract Page Full-Text 2 - Optimization of Multi-period Three-echelon Citrus Supply Chain Problem Navid Sahebjamnia Fariba Goodarzian Mostafa Hajiaghaei-Keshteli 10.22094/joie.2017.728.1463 Open Access Article Abstract Page Full-Text 3 - Stock portfolio optimization of companies listed on the Tehran Stock Exchange based on a combination of two-level ensemble machine learning methods and multi-objective meta-innovative algorithms based on market timing approach sanaz faridi amir daneshvar Mahdi Madanchi Zaj Shadi Shahverdiani