To cite pmclust in a publication use:

Chen W, Ostrouchov G (2012). “pmclust: Parallel Model-Based Clustering.” R Package, https://cran.r-project.org/package=pmclust.

Chen W, Ostrouchov G (2012). A Quick Guide to the pmclust Package. R Vignette, https://cran.r-project.org/package=pmclust.

Corresponding BibTeX entries:

  @Misc{Chen2012pmclustpackage,
    title = {{pmclust}: Parallel Model-Based Clustering},
    author = {W.-C. Chen and G. Ostrouchov},
    year = {2012},
    note = {R Package},
    url = {https://cran.r-project.org/package=pmclust},
  }

  @Manual{Chen2012pmclustvignette,
    title = {A Quick Guide to the {pmclust} Package},
    author = {W.-C. Chen and G. Ostrouchov},
    year = {2012},
    note = {R Vignette},
    url = {https://cran.r-project.org/package=pmclust},
  }