To cite xtbhst in publications use:

  Alkhalaf M (2026). _Bootstrap Slope Heterogeneity Test for Panel
  Data_. doi:10.32614/CRAN.package.xtbhst
  <https://doi.org/10.32614/CRAN.package.xtbhst>. R package version
  1.0.1, <https://CRAN.R-project.org/package=xtbhst>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Bootstrap Slope Heterogeneity Test for Panel Data},
    author = {Muhammad Abdullah Alkhalaf},
    year = {2026},
    note = {R package version 1.0.1},
    url = {https://CRAN.R-project.org/package=xtbhst},
    doi = {10.32614/CRAN.package.xtbhst},
  }