@article{
  author = {Shahghobadi, Saeid, Moradi, Farhad},
  title = {Robust efficiency in data envelopment analysis with VRS technology},
  journal = {Journal of New Researches in Mathematics},
  year = {2018},
  volume = {4},
  number = {1},
  pages = {91-100},
  doi = {}
}