Khanra, S., and K.S. Chaudhuri. “A Production-Inventory Model for a Deteriorating Item With Shortage and Time Dependent Demand”. Yugoslav Journal of Operations Research 21, no. 1 (March 1, 2011): 29–45. Accessed October 19, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/303.