To cite package ‘cs9’ in publications use:

  White RA (2026). _cs9: A Framework for Real-Time Analysis and Disease
  Surveillance_. R package version 26.5.13,
  <https://github.com/niphr/cs9>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cs9: A Framework for Real-Time Analysis and Disease Surveillance},
    author = {Richard Aubrey White},
    year = {2026},
    note = {R package version 26.5.13},
    url = {https://github.com/niphr/cs9},
  }