@Article{,
  author       = {Angela Bohn and Ingo Feinerer and Kurt Hornik and Patrick Mair},
  title	       = {Content-Based {SNA} of Mailing Lists},
  journal      = {The R Journal},
  year	       = 2011,
  volume       = 3,
  number       = 1,
  pages        = {11--18},
  month        = {June},
  url          = {http://journal.r-project.org/archive/2011-1/RJournal_2011-1_Bohn~et~al.pdf}
}