@article{HanRydinBolinderetal.2016,
  author    = {Fang Han and Catarina Rydin and Kristina Bolinder and Guillaume Dupont-Nivet and Hemmo A. Abels and Andreas Koutsodendris and Kexin Zhang and Carina Hoorn},
  title     = {Steppe development on the Northern Tibetan Plateau inferred from Paleogene ephedroid pollen},
  journal   = {Grana},
  volume    = {55},
  pages     = {71 -- 100},
  doi       = {10.1080/00173134.2015.1120343},
  year      = {2016},
}