List of Articles Time-dependent demand Open Access Article Abstract Page Full-Text 1 - Optimal Inventory Control of Obsolete Products with Permissible Delay in Payments and Time-dependent Demand using PSO Algorithm Hasan Zamanibajgani Mohamadreza Gholamian Open Access Article Abstract Page Full-Text 2 - An inventory model for deteriorating items with time-dependent demand and time-varying holding cost under partial backlogging Vinod Kumar Mishra Lal Sahab Singh Rakesh Kumar