To cite package ‘CTRing’ in publications use:

  Mahatara D, Schneider R (2024). _CTRing: Density Profiles of Wood
  from CT Scan Images_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=CTRing>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {CTRing: Density Profiles of Wood from CT Scan Images},
    author = {Dipak Mahatara and Robert Schneider},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=CTRing},
  }