To cite package ‘textBoxPlacement’ in publications use:

  Zeeberg B (2023). _textBoxPlacement: Compute a Non-Overlapping Layout
  of Text Boxes to Label Multiple Overlain Plots_. R package version
  1.0, <https://CRAN.R-project.org/package=textBoxPlacement>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {textBoxPlacement: Compute a Non-Overlapping Layout of Text Boxes to Label Multiple
Overlain Plots},
    author = {Barry Zeeberg},
    year = {2023},
    note = {R package version 1.0},
    url = {https://CRAN.R-project.org/package=textBoxPlacement},
  }