@article{
  author = {Sadeghi, Taher, Behzad, Ardavan},
  title = {The Role of Eco geomorphology in ecotourism expansion using AHP and VIKOR method 
(Case study Ardebil City)},
  journal = {Geographical Journal of Tourism Space},
  year = {2019},
  volume = {8},
  number = {31},
  pages = {57-72},
  doi = {}
}