References

Urbanek, Simon. 2018. Unixtools: Interface to Various System-Level Facilities in Unix. http://www.rforge.net/unixtools.

Xie, Yihui. 2015. Dynamic Documents with R and Knitr. 2nd ed. Boca Raton, Florida: Chapman; Hall/CRC. http://yihui.name/knitr/.

———. 2019. Bookdown: Authoring Books and Technical Documents with R Markdown. https://CRAN.R-project.org/package=bookdown.