To cite 'coMET' in publications use:

  Martin, T., Erte, I, Tsai, P-C, Bell, J.T. coMET: an R plotting
  package to visualize regional plots of epigenome-wide association
  scan results QG14, 2014

A BibTeX entry for LaTeX users is

  @Article{,
    title = {coMET: an R plotting package to visualize regional plots of epigenome-wide association scan results},
    author = {{Martin} and {T.C.} and {Erte} and {I.} and {Tsai} and {P-C.} and {Bell} and {J.T.}},
    journal = {QG14},
    year = {2014},
    month = {May},
    url = {http://quantgen.soc.srcf.net/qg14/},
  }

  Martin, T., Yet, I, Tsai, P-C, Bell, J.T. coMET: visualisation of
  regional epigenome-wide association scan results and DNA
  co-methylation patterns BMC Bioinformatics, 2015 (accepted)

A BibTeX entry for LaTeX users is

  @Article{,
    title = {coMET: visualisation of regional epigenome-wide association scan results and DNA co-methylation patterns},
    author = {{Martin} and {T.C.} and {Erte} and {I.} and {Tsai} and {P-C.} and {Bell} and {J.T.}},
    journal = {BMC Bioinformatics},
    year = {2015},
  }