To cite package ‘crossmatch’ in publications use:

Heller R, Small D, Rosenbaum P (2024). crossmatch: The Cross-Match Test. R package version 1.4-0, https://CRAN.R-project.org/package=crossmatch.

Corresponding BibTeX entry:

  @Manual{,
    title = {crossmatch: The Cross-Match Test},
    author = {Ruth Heller and Dylan Small and Paul Rosenbaum},
    year = {2024},
    note = {R package version 1.4-0},
    url = {https://CRAN.R-project.org/package=crossmatch},
  }