To cite package ‘wex’ in publications use:

  Ginker T (2026). _wex: Exact Observation Weights for the Kalman
  Filter and Smoother_. R package version 0.1.1,
  <https://github.com/timginker/wex>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {wex: Exact Observation Weights for the Kalman Filter and Smoother},
    author = {Tim Ginker},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://github.com/timginker/wex},
  }