Sharma, A., S. Gill, and A. K. Taneja. “Inventory Optimization Model for Deteriorating Items under Inventory Follows Shortage (IFS) and Shortage Follows Inventory (SFI) Policies”. Communications in Mathematics and Applications, vol. 15, no. 3, Nov. 2024, pp. 1191-09, doi:10.26713/cma.v15i3.2829.