Proportional order-up-to policies for closed-loop supply chains: the dynamic effects of inventory controllers International Journal of Production Research Journal Article Salvatore Cannella Borja Ponte Roberto Dominguez Jose Framinan Publication Year of Publication: 2021 Identifiers Locators URL https://doi.org/10.1080/00207543.2020.1867924 DOI: 10.1080/00207543.2020.1867924 Sustainable Development Goals