Cryptology ePrint Archive: BibTeX Citation of Report 2012/122

@misc{cryptoeprint:2012:122,
    author = {Reza R. Farashahi and Hongfeng Wu and Chang-An Zhao},
    title = {Efficient Arithmetic on Elliptic Curves over Fields of Characteristic Three},
    howpublished = {Cryptology ePrint Archive, Report 2012/122},
    year = {2012},
    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.