To cite package ‘jpmesh’ in publications use:

  Uryu S (2024). _jpmesh: Utilities for Japanese Mesh Code_. R package
  version 2.1.0.9000, <https://github.com/uribo/jpmesh>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {jpmesh: Utilities for Japanese Mesh Code},
    author = {Shinya Uryu},
    year = {2024},
    note = {R package version 2.1.0.9000},
    url = {https://github.com/uribo/jpmesh},
  }