@article{
  author = {Torabi, Hossein, Kheyrandish, Masoud , mohammadi Khiyare, mohsen},
  title = {Impact of Entrepreneurial Ecosystem on Entrepreneurial Activity: GEM based Analysis},
  journal = {Journal of Innovation and Value Creation},
  year = {2020},
  volume = {9},
  number = {17},
  pages = {163-182},
  doi = {}
}