“Gradient Boosting-Based Demand Variability Estimation for Improved Safety Stock Calculation in Multi-Echelon Aerospace Spare Parts Inventory”, J. Sci. Innov. Soc. Impact, vol. 2, no. 2, pp. 175–186, May 2026, Accessed: Jun. 22, 2026. [Online]. Available: https://pinnaclepubs.com/index.php/JSISI/article/view/705