To cite matchingMarkets in publications use:

  Thilo Klein (2023). Analysis of Stable Matchings in R: Package
  matchingMarkets. The Comprehensive R Archive Network. URL
  https://cran.r-project.org/package=matchingMarkets.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Analysis of Stable Matchings in {R}: Package {matchingMarkets}},
    author = {Thilo Klein},
    journal = {The Comprehensive R Archive Network},
    year = {2023},
    url = {https://cran.r-project.org/package=matchingMarkets},
  }