@inproceedings{GolleJakobsson:2003,
    author = "P.~Golle and M.~Jakobsson",
    title = "Reusable Anonymous Return Channels",
    booktitle = "Proc. of the 2003 ACM Workshop on Privacy in the 
Electronic Society",
    pages = "94--100",
    year = 2003,
    editor = "P.~Samarati and P.~Syverson",
    publisher = "ACM Press"
}