To cite package ‘Rirt’ in publications use:

Luo X (2019). Rirt: Data Analysis and Parameter Estimation Using Item Response Theory. R package version 0.0.2, https://github.com/xluo11/rirt.

Corresponding BibTeX entry:

  @Manual{,
    title = {Rirt: Data Analysis and Parameter Estimation Using Item
      Response Theory},
    author = {Xiao Luo},
    year = {2019},
    note = {R package version 0.0.2},
    url = {https://github.com/xluo11/rirt},
  }