@article{
  author = {Taher Tolou Del, Mohammad Sadegh, Zare, Marzieh, Sadat, Seyedeh Ashraf},
  title = {Study the Social Instability in Informal Settlements Based on the Challenges of Sustainable Urban Development (Case Study: 2nd District in Tehran Farahzad Neighborhood)},
  journal = {Journal of Geography and Environmental  Studies},
  year = {2021},
  volume = {10},
  number = {38},
  pages = {83-101},
  doi = {}
}