@inproceedings{JP11,
  author        = {H. Jonker and J. Pang},
  title         = {Bulletin boards in voting systems: Modelling and measuring privacy},
  year          = {2011},
  booktitle     = {Proc.\ 6th International Conference on Availability, Reliability and Security},
  publisher     = {IEEE Computer Society},
  pages         = {294--300},
  url           = {http://satoss.uni.lu/members/jun/papers/ARES11.pdf}
}