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

stringr: modern, consistent string processing
Hadley Wickham , The R Journal (2010) 2:2, pages 38-40.

Abstract String processing is not glamorous, but it is frequently used in data cleaning and preparation. The existing string functions in R are powerful, but not friendly. To remedy this, the stringr package provides string functions that are simpler and more consistent, and also fixes some functionality that R is missing compared to other programming languages.

@article{RJ-2010-012,
  author = {Hadley Wickham},
  title = {{stringr: modern, consistent string processing}},
  year = {2010},
  journal = {{The R Journal}},
  doi = {10.32614/RJ-2010-012},
  url = {https://doi.org/10.32614/RJ-2010-012},
  pages = {38--40},
  volume = {2},
  number = {2}
}