@article{
  author = {Davtalab, A., Mehrjoo, R.},
  title = {Portfolio ranking: using finance technology set in DEA models (Case Study: Tehran Stock Exchange)},
  journal = {Journal of New Researches in Mathematics},
  year = {2019},
  volume = {5},
  number = {5},
  pages = {47-56},
  doi = {}
}