Cryptology ePrint Archive: BibTeX Citation of Report 2013/405

@misc{cryptoeprint:2013:405,
    author = {Chunming Tang,  Yanfeng Qi,  Maozhi  Xu},
    title = {New Quadratic Bent Functions in Polynomial Forms with Coefficients in Extension Fields},
    howpublished = {Cryptology ePrint Archive, Report 2013/405},
    year = {2013},
    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.