Cryptology ePrint Archive: BibTeX Citation of Report 2003/166

@misc{cryptoeprint:2003:166,
    author = {Igor Semaev},
    title = {A reduction of the space for the parallelized Pollard lambda search on elliptic curves over prime finite fields and on anomalous binary elliptic curves},
    howpublished = {Cryptology ePrint Archive, Report 2003/166},
    year = {2003},
    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.