Cryptology ePrint Archive: BibTeX Citation of Report 2007/162

@misc{cryptoeprint:2007:162,
    author = {Jens-Matthias Bohli and Joern Mueller-Quade and Stefan Roehrich},
    title = {Bingo Voting: Secure and coercion-free voting using a trusted random number generator},
    howpublished = {Cryptology ePrint Archive, Report 2007/162},
    year = {2007},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.