@inproceedings{pham09metrics,
  title = {Discussing Anonymity Metrics for Mix Based Anonymity Approaches}, 
  author = {Vinh Pham and Joss Wright}, 
  booktitle = {Proceedings of iNetSec 2009: Open Research Problems in Network Security}, 
  year = {2009}, 
  month = {April}, 
  www_pdf_url = {http://www.pseudonymity.net/~joss/doc/papers/2009/pham09metrics.pdf}
}