@misc{cryptoeprint:2007:311,
    author = {Jean-Luc Beuchat and Masaaki Shirase and Tsuyoshi Takagi and Eiji Okamoto},
    title = {A Refined Algorithm for the $\eta_T$ Pairing Calculation in Characteristic Three},
    howpublished = {Cryptology ePrint Archive, Report 2007/311},
    year = {2007},
    url = {http://eprint.iacr.org/2007/311},
}