TY - JOUR AU - Lashgari, Mohsen AU - Sadjadi, Seyed Jafar AU - Taleizadeh, Ata Allah AU - Heydari, Mahdi TI - Building a sustainability in a two-echelon closed loop supply chains: a mathematical approach for permissible delay in payment and backlogging JO - RAIRO. Operations Research PY - 2022 SP - 4145 EP - 4180 VL - 56 IS - 6 PB - EDP-Sciences UR - https://www.numdam.org/articles/10.1051/ro/2022127/ DO - 10.1051/ro/2022127 LA - en ID - RO_2022__56_6_4145_0 ER -