@article{SchmidtWalzJonesetal.2016,
  author    = {Katja Schmidt and Ariane Walz and Isobel Jones and Marc J. Metzger},
  title     = {The Sociocultural Value of Upland Regions in the Vicinity of Cities in Comparison With Urban Green Spaces},
  journal   = {Mountain research and development},
  volume    = {36},
  pages     = {465 -- 474},
  doi       = {10.1659/MRD-JOURNAL-D-16-00044.1},
  year      = {2016},
}