To cite package ‘rbreak’ in publications use:

  Qu Z, Kim C (2026). _rbreak: Restricted Structural Change Models_. R
  package version 1.0.7, <https://CRAN.R-project.org/package=rbreak>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rbreak: Restricted Structural Change Models},
    author = {Zhongjun Qu and Cheolju Kim},
    year = {2026},
    note = {R package version 1.0.7},
    url = {https://CRAN.R-project.org/package=rbreak},
  }