List of Articles Multi-echelon Open Access Article Abstract Page Full-Text 1 - Determination of Material Flows in a Multi-echelon Assembly Supply Chain Mehrnoosh Taherkhani Mehdi Seifbarghy Open Access Article Abstract Page Full-Text 2 - Bi-product inventory planning in a three-echelon supply chain with backordering, Poisson demand, and limited warehouse space Maryam Alimardani Fariborz Jolai Hamed Rafiei