@conference{levchenko11sp,
  title={{Click Trajectories: End-to-End Analysis of the Spam Value Chain}},
  author={Kirill Levchenko and Andreas Pitsillidis and Neha Chachra and Brandon Enright and Mark Felegyhazi and Chris Grier and Tristan Halvorson and Chris Kanich and Christian Kreibich and He Liu and Damon McCoy and Nicholas Weaver and Vern Paxson and Geoffrey M. Voelker and Stefan Savage},
  booktitle={Proceedings of the IEEE Symposium on Security and Privacy},
  year={2011},
  month={May}
}