@misc{cryptoeprint:2003:196,
    author = {Guilin Wang, Feng Bao, Jianying Zhou, and Robert H. Deng},
    title = {Security Analysis of Some Proxy Signatures},
    howpublished = {Cryptology ePrint Archive, Report 2003/196},
    year = {2003},
    url = {http://eprint.iacr.org/2003/196},
}