@misc{cryptoeprint:2011:039,
    author = {Duc-Phong Le},
    title = {Fast Quadrupling of a Point in Elliptic Curve Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2011/039},
    year = {2011},
    url = {http://eprint.iacr.org/2011/039},
}