To cite package ‘definecore’ in publications use:

  Shakhar Eranna Chalwadi (2026). _definecore: Generate CDISC
  Define-XML from Metacore Objects_. R package version 0.1.1,
  <https://CRAN.R-project.org/package=definecore>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {definecore: Generate CDISC Define-XML from Metacore Objects},
    author = {{Shakhar Eranna Chalwadi}},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=definecore},
  }