@InProceedings{ChCh:IPTPS04,
  author =       "N. Christin and J. Chuang",
  title =        "On the cost of participating in a peer-to-peer network",
  booktitle =    "{Proceedings of the 3rd International Workshop on Peer-to-Peer Systems (IPTPS'04), Lecture Notes in Computer Science}",
  year =         2004,
  address =      "San Diego, CA",
  month =        feb,
  pages = "22--32",
  volume = 3279
}