@article{
  author = {Farshad, Atefeh, Rostamy-Malkhalifeh, Mohsen},
  title = {Calculation of non-radial efficiency of decision-making units with fuzzy data using GDEA model},
  journal = {International Journal of Data Envelopment Analysis},
  year = {2021},
  volume = {9},
  number = {2},
  pages = {23-28},
  doi = {}
}