The R Journal: article published in 2010, volume 2:2

Source References
Duncan Murdoch , The R Journal (2010) 2:2, pages 16-19.

Since version 2.10.0, R includes expanded support for source references in R code and ‘.Rd’ files. This paper describes the origin and purposes of source references, and current and future support for them.

@article{RJ-2010-010,
  author = {Duncan Murdoch},
  title = {{Source References}},
  year = {2010},
  journal = {{The R Journal}},
  doi = {10.32614/RJ-2010-010},
  url = {https://doi.org/10.32614/RJ-2010-010},
  pages = {16--19},
  volume = {2},
  number = {2}
}