Cryptology ePrint Archive: BibTeX Citation of Report 2009/236

@misc{cryptoeprint:2009:236,
    author = {Fumiyuki Momose and Jinhui Chao},
    title = {Elliptic curves with weak coverings over cubic extensions of finite fields with odd characteristics},
    howpublished = {Cryptology ePrint Archive, Report 2009/236},
    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.