To cite biocharkit in publications use:

  Sarkar, S. (2026). biocharkit: Tools for Biochar Characterisation and
  Adsorption Data Analysis. R package version 0.3.0.
  https://CRAN.R-project.org/package=biocharkit

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {biocharkit: Tools for Biochar Characterisation and Adsorption Data Analysis},
    author = {Sukamal Sarkar},
    year = {2026},
    note = {R package version 0.3.0},
    url = {https://CRAN.R-project.org/package=biocharkit},
  }