TY - JOUR AU - Maity, Suman AU - Chakraborty, Avishek AU - De, Sujit Kumar AU - Mondal, Sankar Prasad AU - Alam, Shariful TI - A comprehensive study of a backlogging EOQ model with nonlinear heptagonal dense fuzzy environment JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2020 SP - 267 EP - 286 VL - 54 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2018114/ DO - 10.1051/ro/2018114 LA - en ID - RO_2020__54_1_267_0 ER -