@inproceedings{berman-fc2004,
  title = {Provable Unlinkability Against Traffic Analysis}, 
  author = {Ron Berman and Amos Fiat and Amnon Ta-Shma}, 
  booktitle = {Proceedings of Financial Cryptography (FC '04)}, 
  year = {2004}, 
  month = {February}, 
  pages = {266--280}, 
  editor = {Ari Juels}, 
  publisher = {Springer-Verlag, LNCS 3110}, 
  www_tags = {selected}, 
  www_section = {Anonymous communication}, 
  www_pdf_url = {http://www.math.tau.ac.il/~fiat/newpaps/fc04.pdf}, 
}