@article{
  author = {Ranjbar, محسن},
  title = {Management of natural resources and environmental
hazardoues of rivers to reinforce tourism and ecotourism
potential
Case study: Abbass Abad river- Hamedan},
  journal = {Territory},
  year = {2006},
  volume = {3},
  number = {10},
  pages = {80-91},
  doi = {}
}