@article{
  author = {Niknamfar, Amir Hossein, Pasandideh, Seyed Hamid Reza},
  title = {A Bi-objective Optimization for Vendor Managed Inventory Model},
  journal = {Journal of Optimization in Industrial Engineering},
  year = {2014},
  volume = {7},
  number = {15},
  pages = {37-45},
  doi = {}
}