To cite package 'TwoRegression' in publications use:

Hibbing PR (2018). “TwoRegression: Develop and Apply Two-Regression Algorithms.” https://github.com/paulhibbing/TwoRegression/.

Corresponding BibTeX entry:

  @Misc{,
    title = {TwoRegression: Develop and Apply Two-Regression
      Algorithms},
    author = {Paul R. Hibbing},
    year = {2018},
    url = {https://github.com/paulhibbing/TwoRegression/},
  }