%0 Journal Article %A Sarkar, Sumon %A Giri, Bibhas Chandra %T Optimal ordering policy in a two-echelon supply chain model with variable backorder and demand uncertainty %J RAIRO. Operations Research %D 2021 %P S673-S698 %V 55 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/ro/2020007/ %R 10.1051/ro/2020007 %G en %F RO_2021__55_S1_S673_0