To cite xtife in publications use:

  Chen B (2026). _xtife: Interactive Fixed Effects Estimator for
  Balanced Panel Data_. R package version 0.1.3,
  <https://CRAN.R-project.org/package=xtife>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{xtife}: Interactive Fixed Effects Estimator for Balanced Panel Data},
    author = {Binzhi Chen},
    year = {2026},
    note = {R package version 0.1.3},
    url = {https://CRAN.R-project.org/package=xtife},
  }