To cite package ‘esgcalc’ in publications use:

  Geromichalos D (2026). _esgcalc: Offline Environmental, Social and
  Governance Calculations_. R package version 0.2.0,
  <https://CRAN.R-project.org/package=esgcalc>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {esgcalc: Offline Environmental, Social and Governance Calculations},
    author = {Dimitrios Geromichalos},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://CRAN.R-project.org/package=esgcalc},
  }