@article{
  author = {Peykani, Pejman, Gheidar-Kheljani, Jafar},
  title = {Performance Appraisal of Research and Development Projects Value-Chain for Complex Products and Systems: The Fuzzy Three-Stage DEA Approach},
  journal = {Journal of New Researches in Mathematics},
  year = {2020},
  volume = {6},
  issue = {3},
  pages = {41-58},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/798019}
}