@article{RO_2020__54_1_267_0,
     author = {Maity, Suman and Chakraborty, Avishek and De, Sujit Kumar and Mondal, Sankar Prasad and Alam, Shariful},
     title = {A comprehensive study of a backlogging {EOQ} model with nonlinear heptagonal dense fuzzy environment},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {267--286},
     publisher = {EDP-Sciences},
     volume = {54},
     number = {1},
     year = {2020},
     doi = {10.1051/ro/2018114},
     mrnumber = {4062456},
     zbl = {1444.03155},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2018114/}
}