@misc{cryptoeprint:2008:019,
    author = {Steven D. Galbraith and Xibin Lin},
    title = {Computing Pairings Using x-Coordinates Only},
    howpublished = {Cryptology ePrint Archive, Report 2008/019},
    year = {2008},
    url = {http://eprint.iacr.org/2008/019},
}