citHeader("To cite package 'plotrix' in publications use:")
 citEntry(entry="Article",
  title = "Plotrix: a package in the red light district of R",
  journal = "R-News",
  volume = "6",
  number = "4",
  pages = "8-12",
  author = "Lemon, J",
  textVersion = "Lemon, J. (2006) Plotrix: a package in the red light
   district of R. R-News, 6(4): 8-12.")
