Cryptology ePrint Archive: BibTeX Citation of Report 2010/363

@misc{cryptoeprint:2010:363,
    author = {Kristin Lauter and Peter L. Montgomery and Michael Naehrig},
    title = {An Analysis of Affine Coordinates for Pairing Computation},
    howpublished = {Cryptology ePrint Archive, Report 2010/363},
    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.