To cite package ‘CMatching’ in publications use:

Cannas M (2025). CMatching: Matching Algorithms for Causal Inference with Clustered Data. R package version 2.4, https://CRAN.R-project.org/package=CMatching.

Corresponding BibTeX entry:

  @Manual{,
    title = {CMatching: Matching Algorithms for Causal Inference with
      Clustered Data},
    author = {Massimo Cannas},
    year = {2025},
    note = {R package version 2.4},
    url = {https://CRAN.R-project.org/package=CMatching},
  }