To cite package ‘greenSD’ in publications use:

Yang X (2026). greenSD: Access and Analyze Global GreenSpace Spatial Data. R package version 0.2.2, https://github.com/billbillbilly/greensd.

Corresponding BibTeX entry:

  @Manual{,
    title = {greenSD: Access and Analyze Global GreenSpace Spatial
      Data},
    author = {Xiaohao Yang},
    year = {2026},
    note = {R package version 0.2.2},
    url = {https://github.com/billbillbilly/greensd},
  }