فهرس المقالات distribution planning problem . Bi-level approach . Network design حرية الوصول المقاله صفحة الملخص نص كامل 1 - Optimizing decentralized production–distribution planning problem in a multi-period supply chain network under uncertainty Raheleh Nourifar Iraj Mahdavi Nezam Mahdavi-Amiri Mohammad Mahdi Paydar