The methods within the code package can be cited as:

  Gu, Z. (2022) Pkgndep: a tool for analyzing dependency heaviness of R
  packages. Bioinformatics.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Pkgndep: a tool for analyzing dependency heaviness of R packages},
    author = {Zuguang Gu and Daniel Huebschmann},
    journal = {Bioinformatics},
    year = {2022},
    doi = {10.1093/bioinformatics/btac449},
  }

  Gu, Z. (2023) On the dependency heaviness of CRAN/Bioconductor
  ecosystem. Journal of Systems and Software.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {On the dependency heaviness of CRAN/Bioconductor ecosystem},
    author = {Zuguang Gu},
    journal = {Journal of Systems and Software},
    year = {2023},
    doi = {10.1016/j.jss.2023.111610},
  }

This free open-source software implements academic research by the
authors and co-workers. If you use it, please support the project by
citing the appropriate journal articles.