Security Evaluation of the Sequoia Voting System

@article{Vigna2007Security_Evaluation,
  title   = {{Security Evaluation of the Sequoia Voting System}},
  author  = {Vigna, Giovanni and Kemmerer, Richard A. and Balzarotti, Davide and Banks, Greg and Cova, Marco and Felmetsger, Vika and Robertson, Wil and Valeur, Fredrik},
  month   = {July},
  year    = {2007},
  journal = {Top-To-Bottom Review of the California Voting Machines}
}