To cite package ‘birt’ in publications use:

Tsai J (2026). birt: BIvariate Response Time Modeling with 'lavaan'-Style Syntax. R package version 0.2.0, https://github.com/jiewentsai/birt.

Corresponding BibTeX entry:

  @Manual{,
    title = {birt: BIvariate Response Time Modeling with 'lavaan'-Style
      Syntax},
    author = {Jie-Wen Tsai},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://github.com/jiewentsai/birt},
  }