@misc{cryptoeprint:2008:447,
    author = {Chong-zhi Gao  and Baodian Wei and Chunming Tang},
    title = {Divisible On-line/Off-line Signatures},
    howpublished = {Cryptology ePrint Archive, Report 2008/447},
    year = {2008},
    url = {http://eprint.iacr.org/2008/447},
}