To cite in publications use:

Ingo Feinerer (2012). tm: Text Mining Package. R package version 0.5-7.1.

Ingo Feinerer, Kurt Hornik, and David Meyer (2008). Text Mining Infrastructure in R. Journal of Statistical Software 25/5. URL: http://www.jstatsoft.org/v25/i05/.

Corresponding BibTeX entries:

  @Manual{,
    title = {tm: Text Mining Package},
    author = {Ingo Feinerer},
    year = {2012},
    note = {R package version 0.5-7.1.},
    url = {http://tm.r-forge.r-project.org/},
  }

  @Article{,
    title = {Text Mining Infrastructure in R},
    author = {Ingo Feinerer and Kurt Hornik and David Meyer},
    year = {2008},
    journal = {Journal of Statistical Software},
    volume = {25},
    number = {5},
    url = {http://www.jstatsoft.org/v25/i05/},
    month = {March},
  }