To cite package ‘reproj’ in publications use:

Sumner M (2026). reproj: Coordinate System Transformations for Generic Map Data. R package version 0.8.1, https://github.com/hypertidy/reproj.

Corresponding BibTeX entry:

  @Manual{,
    title = {reproj: Coordinate System Transformations for Generic Map
      Data},
    author = {Michael D. Sumner},
    year = {2026},
    note = {R package version 0.8.1},
    url = {https://github.com/hypertidy/reproj},
  }