@article{
  author = {Hamidi Razi, Davoud, Feshari, Majid},
  title = {Investigation of Per capita CO2 Dynamics in OPEC Countries  (β and σ Convergence Approach)},
  journal = {Journal of Environmental Science and Technology},
  year = {2017},
  volume = {19},
  number = {4},
  pages = {87-99},
  doi = {10.22034/jest.2017.10705}
}