@article{RO_2007__41_1_35_0,
     author = {You, Peng-Sheng},
     title = {Optimal times of price reductions for an inventory model with partial backorder and vertical shift demand},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {35--47},
     publisher = {EDP-Sciences},
     volume = {41},
     number = {1},
     year = {2007},
     doi = {10.1051/ro:2007010},
     mrnumber = {2310538},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro:2007010/}
}