فهرست مقالات Kuhn-Tucker optimality condition دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Two-echelon Supply Chain Considering Multiple Retailers with Price and Promotional Effort Sensitive Non-linear Demand Elahe Mohagheghian Morteza Rasti-Barzoki Rashed Sahraeian 10.22094/joie.2017.542503.1508