@article{
  author = {Rezai Balf, F., Hosseinzadeh Lotfi, F., Alizadeh Afrouzi, M.},
  title = {The interval Malmquist productivity index in DEA},
  journal = {Iranian Journal of Optimization},
  year = {2010},
  volume = {4},
  issue = {1},
  pages = {272-281},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/1018932}
}