Cryptology ePrint Archive: BibTeX Citation of Report 2009/233

@misc{cryptoeprint:2009:233,
    author = {Paula Bustillo and Domingo Gomez and Jaime Gutierrez and Alvar Ibeas},
    title = {A strategy for recovering  roots of  bivariate polynomials modulo a prime},
    howpublished = {Cryptology ePrint Archive, Report 2009/233},
    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.