To cite package ‘ETRep’ in publications use:

  Taheri Shalmani M, Schulz J, Pizer S (2024). _ETRep: Analysis of
  Elliptical Tubes Under the Relative Curvature Condition_. R package
  version 1.1.0, <https://CRAN.R-project.org/package=ETRep>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ETRep: Analysis of Elliptical Tubes Under the Relative Curvature
Condition},
    author = {Mohsen {Taheri Shalmani} and Jörn Schulz and Stephen M. Pizer},
    year = {2024},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=ETRep},
  }