Controlling imperfect efficiency of live deteriorating products within a four-layer supply chain managementUrmila Chaudhari, Amrita Bhadoriya, Mrudul Y. Jani, Biswajit Sarkar and Mitali SarkarRAIRO-Oper. Res., 59 4 (2025) 1803-1823DOI: https://doi.org/10.1051/ro/2025041