To cite package ‘fixes’ in publications use:

  Abe Y (2026). _fixes: Staggered DiD Tools: Event Studies and ATT
  Aggregation_. R package version 0.11.2,
  <https://CRAN.R-project.org/package=fixes>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fixes: Staggered DiD Tools: Event Studies and ATT Aggregation},
    author = {Yosuke Abe},
    year = {2026},
    note = {R package version 0.11.2},
    url = {https://CRAN.R-project.org/package=fixes},
  }