Cryptology ePrint Archive: BibTeX Citation of Report 2013/121

@misc{cryptoeprint:2013:121,
    author = {Helger Lipmaa},
    title = {Succinct Non-Interactive Zero Knowledge Arguments from Span Programs and Linear Error-Correcting Codes},
    howpublished = {Cryptology ePrint Archive, Report 2013/121},
    year = {2013},
    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.