To cite textstem in publications, please use:

Rinker TW (2018). textstem: Tools for stemming and lemmatizing text. version 0.1.4, http://github.com/trinker/textstem.

Corresponding BibTeX entry:

  @Manual{,
    title = {{textstem}: Tools for stemming and lemmatizing text},
    author = {Tyler W. Rinker},
    address = {Buffalo, New York},
    note = {version 0.1.4},
    year = {2018},
    url = {http://github.com/trinker/textstem},
  }