To cite package ‘optsize’ in publications use:

  Garde Y, Patil S, Shitap M (2025). _optsize: Optimal Plot Size
  Estimation for Field Experiments_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=optsize>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {optsize: Optimal Plot Size Estimation for Field Experiments},
    author = {Y.A. Garde and S.G. Patil and M.S. Shitap},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=optsize},
  }