To cite rEMM in publications use:

Michael Hahsler, Margaret H. Dunham (2012). rEMM: Extensible Markov Model for Data Stream Clustering in R. R package version 1.0-6.
Michael Hahsler, Margaret H. Dunham (2010). rEMM: Extensible Markov Model for Data Stream Clustering in R. Journal of Statistical Software, 35(5), 1-31. URL http://www.jstatsoft.org/v35/i05/.

Corresponding BibTeX entries:

  @Manual{,
    title = {{rEMM}: Extensible Markov Model for Data Stream Clustering
      in {R}},
    author = {Michael Hahsler and Margaret H. Dunham},
    year = {2012},
    note = {R package version 1.0-6.},
    url = {http://CRAN.R-project.org/},
  }
  @Article{,
    title = {{rEMM}: Extensible Markov Model for Data Stream Clustering
      in {R}},
    author = {Michael Hahsler and Margaret H. Dunham},
    journal = {Journal of Statistical Software},
    year = {2010},
    volume = {35},
    number = {5},
    pages = {1--31},
    url = {http://www.jstatsoft.org/v35/i05/},
  }