To cite package ‘epigenomix’ in publications use:

  Hans-Ulrich Klein et al. (2014): Integrative analysis of histone
  ChIP-seq and transcription data using Bayesian mixture models.
  Bioinformatics 30(8):1154-1162

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Integrative analysis of histone ChIP-seq and transcription data using Bayesian mixture models},
    author = {Hans-Ulrich Klein and Martin Schaefer and Bo T. Porse and Marie S. Hasemann and Katja Ickstadt and Martin Dugas},
    year = {2014},
    journal = {Bioinformatics},
    volume = {30},
    number = {8},
    pages = {1154-1162},
    doi = {10.1093/bioinformatics/btu003},
    url = {http://bioinformatics.oxfordjournals.org/content/30/8/1154.abstract},
  }