Cryptology ePrint Archive: BibTeX Citation of Report 2011/514

@misc{cryptoeprint:2011:514,
    author = {Mohammad Sadeq Dousti and Rasool Jalili},
    title = {Milder Definitions of Computational Approximability: The Case of Zero-Knowledge Protocols},
    howpublished = {Cryptology ePrint Archive, Report 2011/514},
    year = {2011},
    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.