فهرست مقالات Bi-product multi-echelon inventory planning دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Bi-product inventory planning in a three-echelon supply chain with backordering, Poisson demand, and limited warehouse space Maryam Alimardani Fariborz Jolai Hamed Rafiei