To cite package ‘twang’ in publications use:

Cefalu M, Ridgeway G, McCaffrey D, Morral A, Griffin BA, Burgette L (2025). twang: Toolkit for Weighting and Analysis of Nonequivalent Groups. R package version 2.6.2, https://CRAN.R-project.org/package=twang.

Corresponding BibTeX entry:

  @Manual{,
    title = {twang: Toolkit for Weighting and Analysis of Nonequivalent
      Groups},
    author = {Matthew Cefalu and Greg Ridgeway and Dan McCaffrey and
      Andrew Morral and Beth Ann Griffin and Lane Burgette},
    year = {2025},
    note = {R package version 2.6.2},
    url = {https://CRAN.R-project.org/package=twang},
  }