List of Articles Median problem Open Access Article Abstract Page Full-Text 1 - مساله میانه و مرکز کارا: یک مدل برنامه ریزی صحیح توام دوهدفه طاهره سیار جعفر فتحلی مجتبی غیاثی Open Access Article Abstract Page Full-Text 2 - Sustainable p-hub Median Modeling for Perishable items in presence of Fuzzy Setting saeed zameni Esmaeil Najafi seyyed mohammad Hadjimolana Seyed Mojtaba Sajadi Open Access Article Abstract Page Full-Text 3 - Bi-objective optimization of multi-server intermodal hub-location-allocation problem in congested systems: modeling and solution Mahdi Rashidi Kahag Seyed Taghi Akhavan Niaki Mehdi Seifbarghy Sina Zabihi