Cryptology ePrint Archive: BibTeX Citation of Report 2009/370

@misc{cryptoeprint:2009:370,
    author = {Nadia El Mrabet and Nicolas Guillermin and Sorina Ionica},
    title = {A study of pairing computation for elliptic curves with embedding degree 15},
    howpublished = {Cryptology ePrint Archive, Report 2009/370},
    year = {2009},
    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.