@article{RO_2020__54_1_1_0,
     author = {Pal, Brojeswar and Adhikari, Subhankar},
     title = {Two phases inventory model with variable cycle length under discount policy},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {1--18},
     publisher = {EDP-Sciences},
     volume = {54},
     number = {1},
     year = {2020},
     doi = {10.1051/ro/2018086},
     mrnumber = {4052229},
     zbl = {1437.90014},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2018086/}
}