Cryptology ePrint Archive: BibTeX Citation of Report 2011/698

@misc{cryptoeprint:2011:698,
    author = {Chunming Tang, Yu Lou, Yanfeng Qi, Baocheng Wang, Yixian Yang},
    title = {A generalization of the class of  hyper-bent Boolean functions in binomial forms},
    howpublished = {Cryptology ePrint Archive, Report 2011/698},
    year = {2011},
    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.