To cite package 'MEDME' in publications use:

  Mattia Pelizzola, Yasuo Koga, Alexander Eckehart Urban, Michael
  Krauthammer, Sherman Weissman, Ruth Halaban and Annette M. Molinaro;
  MEDME: An experimental and analytical methodology for the estimation
  of DNA methylation levels based on microarray derived
  MeDIP-enrichment; Genome Research, 2008

A BibTeX entry for LaTeX users is

  @Article{,
    title = {MEDME: An experimental and analytical methodology for the estimation of DNA methylation levels based on microarray derived MeDIP-enrichment},
    author = {Mattia Pelizzola and Yasuo Koga and Alexander Eckehart Urban and Michael Krauthammer and Sherman Weissman and Ruth Halaban and Annette Molinaro},
    journal = {Genome Research},
    year = {2008},
    note = {R package version 1.65.0},
  }