@article{
  author = {Taghipour, Ali, rezai, Mohammadrezq},
  title = {An analysis of the evolution of the population hierarchy system with an emphasis on the position of the middle cities under study in East Azarbaijan province},
  journal = {Territory},
  year = {2023},
  volume = {20},
  issue = {78},
  pages = {107-130},
  doi = {10.30495/sarzamin.2023.74408.2110},
  url = {https://sanad.iau.ir/fa/Article/823587}
}