@phdthesis{Tian2015,
  author      = {Fang Tian},
  title       = {Vegetation and environmental changes on millennial, centennial and decadal time-scales in central Mongolia and their driving forces},
  type        = {doctoralthesis},
  pages       = {139},
  school      = {Universit{\"a}t Potsdam},
  year        = {2015},
}