@article{
  author = {Safarzadeh, Biuok, Rahmani, Bijan},
  title = {The place of the relationship between urban service standards and population in evaluating the rate of development of Ardabil Province cities using Topsis model},
  journal = {},
  year = {2015},
  volume = {8},
  number = {30},
  pages = {1-18},
  doi = {}
}