Mishra, Saurabh Kumar, and Vinod Kumar Mishra. “Optimal Inventory Strategies for Managing Shortages through Substitution of High- and Low-Quality Products With Lead Time Risk”. WPOM-Working Papers on Operations Management 17 (April 14, 2026). Accessed October 6, 2026. https://polipapers.upv.es/index.php/WPOM/article/view/24162.