@article{
  author = {Ahadzadeh namin, M., Khamseh, E.},
  title = {Ranking Efficient DMUs in Two-stage Network DEA with Common Weights method},
  journal = {Journal of New Researches in Mathematics},
  year = {2017},
  volume = {3},
  number = {3},
  pages = {5-18},
  doi = {}
}