Socially concerned periodic review replenishment system with customer service level and supply chain contractingMaryam Johari, Seyyed-Mahdi Hosseini-Motlagh, Mohammadreza Nematollahi, Mark Goh and Joshua IgnatiusRAIRO-Oper. Res., 55 2 (2021) 1077-1111DOI: https://doi.org/10.1051/ro/2021040