Cryptology ePrint Archive: BibTeX Citation of Report 2008/484

@misc{cryptoeprint:2008:484,
    author = {Boris Skoric and Chibuzo Obi and Evgeny Verbitskiy and Berry Schoenmakers},
    title = {Sharp lower bounds on the extractable randomness from non-uniform sources},
    howpublished = {Cryptology ePrint Archive, Report 2008/484},
    year = {2008},
    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.