TY - JOUR AU - Seliaman, Mohamed E. AU - Khan, Mehmood AU - Cárdenas-Barrón, Leopoldo Eduardo TI - Algebraic modelling of a two level supply chain with defective items JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2018 SP - 415 EP - 427 VL - 52 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2017063/ DO - 10.1051/ro/2017063 LA - en ID - RO_2018__52_2_415_0 ER -