To cite package ‘BiTSLS’ in publications use:

  Min J (2025). _BiTSLS: Bidirectional Two-Stage Least Squares
  Estimation_. R package version 0.1.0,
  <https://github.com/jiaqi-min/bitsls>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {BiTSLS: Bidirectional Two-Stage Least Squares Estimation},
    author = {Jiaqi Min},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/jiaqi-min/bitsls},
  }