Cryptology ePrint Archive: BibTeX Citation of Report 2011/540

@misc{cryptoeprint:2011:540,
    author = {Yosuke Katoh and Yun-Ju Huang and Chen-Mou Cheng and Tsuyoshi Takagi},
    title = {Efficient Implementation of the $\eta_T$ Pairing on GPU},
    howpublished = {Cryptology ePrint Archive, Report 2011/540},
    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.