To cite package ‘jpgrid’ in publications use:

Uchida M (2025). jpgrid: Functions for the Grid Square Codes in Japan. R package version 0.4.0.9000, https://github.com/uchidamizuki/jpgrid.

Corresponding BibTeX entry:

  @Manual{,
    title = {jpgrid: Functions for the Grid Square Codes in Japan},
    author = {Mizuki Uchida},
    year = {2025},
    note = {R package version 0.4.0.9000},
    url = {https://github.com/uchidamizuki/jpgrid},
  }