فهرست مقالات linear demand دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - An optimal policy for deteriorating items with time-proportional deterioration rate and constant and time-dependent linear demand rate Trailokyanath Singh Pandit Jagatananda Mishra Hadibandhu Pattanayak دسترسی آزاد مقاله صفحه چکیده متن کامل 2 - Purchasing Inventory Models for Deteriorating Items with Linear Demand and Shortages - in Third Order Equation Sivashankari C.K.