@article{
  author = {Heshmati, Gholam Ali, Mohebbi, Zahra},
  title = {Development of State-and-Transition Models (STM): Integrating Ecosystem Function, Structure and Energy to STM},
  journal = {Journal of Rangeland Science},
  year = {2013},
  volume = {2},
  number = {4},
  pages = {707-718},
  doi = {}
}