Cryptology ePrint Archive: BibTeX Citation of Report 2010/437

@misc{cryptoeprint:2010:437,
    author = {Albrecht Petzoldt and Stanislav Bulygin and Johannes Buchmann},
    title = {Selecting Parameters for the Rainbow Signature Scheme - Extended Version -},
    howpublished = {Cryptology ePrint Archive, Report 2010/437},
    year = {2010},
    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.