@article{
  author = {Mehrabian, S.},
  title = {The Uniqueness of the Overall Assurance Interval for Epsilon in DEA Models by the Direction Method},
  journal = {Journal of New Researches in Mathematics},
  year = {2015},
  volume = {1},
  issue = {2},
  pages = {13-20},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/798719}
}