To cite package ‘RegKink’ in publications use:

Yang L (2021). RegKink: Regression Kink with a Time-Varying Threshold. R package version 0.1.0, https://CRAN.R-project.org/package=RegKink.

Corresponding BibTeX entry:

  @Manual{,
    title = {RegKink: Regression Kink with a Time-Varying Threshold},
    author = {Lixiong Yang},
    year = {2021},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=RegKink},
  }