@misc{pj-votebuying,
  author        = {Wolter Pieters and Hugo Jonker},
  title         = {Vote buying revisited: implications for receipt-freeness},
  year          = {2007},
  note          = {2nd Benelux Workshop on Information and System Security (WISSEC 2007), Luxembourg},
  ee            = {http://satoss.uni.lu/papers/pj-votebuying.pdf}
}