List of Articles Queuing Systems Open Access Article Abstract Page Full-Text 1 - Production Optimization on the Flow Shop Scheduling Problem: A Simulation Study Farshid Salehi Seyed Mojtaba Sajadi Mohammad Mehdi Karami Open Access Article Abstract Page Full-Text 2 - 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