List of Articles Bi-level programming Open Access Article Abstract Page Full-Text 1 - یک مدل بازه ای در شبکه جریان تحریمشده راضیه کشاورزی حسن صالحی فتح آبادی Open Access Article Abstract Page Full-Text 2 - An Algorithm Genetic Approach for solving Bi-level Linear Programming Hashem Omrani Open Access Article Abstract Page Full-Text 3 - Centralized Supply Chain Network Ddesign: Monopoly, Duopoly, and Ooligopoly Competitions under Uncertainty kaveh Fahimi Seyed Mohammad Seyed Hosseini Ahmad Makui 10.22094/joie.2017.685.1439 Open Access Article Abstract Page Full-Text 4 - A heuristic algorithm for solving bi-level programming problems with application to large-scale location-arc routing in urban traffic lights maintenance Amir Abbas Shojaie Alireza Rashidi Komijan Mohammad Amirabadi Open Access Article Abstract Page Full-Text 5 - Exact algorithms for solving a bi-level location–allocation problem considering customer preferences Ehsan Mirzaei Mahdi Bashiri Hossein Shams Shemirani