To cite package ‘wmm’ in publications use:

Frierson W (2025). wmm: World Magnetic Model. R package version 1.1.3, https://github.com/wfrierson/wmm.

Corresponding BibTeX entry:

  @Manual{,
    title = {wmm: World Magnetic Model},
    author = {Will Frierson},
    year = {2025},
    note = {R package version 1.1.3},
    url = {https://github.com/wfrierson/wmm},
  }