@misc{cryptoeprint:2004:108,
    author = {Sherman S.M. Chow and Lucas C.K. Hui and S.M. Yiu and K.P. Chow},
    title = {Two Improved Partially Blind Signature Schemes from Bilinear Pairings},
    howpublished = {Cryptology ePrint Archive, Report 2004/108},
    year = {2004},
    url = {http://eprint.iacr.org/2004/108},
}