@misc{cryptoeprint:2007:236,
    author = {Sherman S.M. Chow and Wun-She Yap},
    title = {Certificateless Ring Signatures},
    howpublished = {Cryptology ePrint Archive, Report 2007/236},
    year = {2007},
    url = {http://eprint.iacr.org/2007/236},
}