@misc{cryptoeprint:2004:337,
    author = {Wu Wenling  and  Zhang Wentao  and  Lin  Dongdai },
    title = {Security on Generalized Feistel Scheme with SP Round Function},
    howpublished = {Cryptology ePrint Archive, Report 2004/337},
    year = {2004},
    url = {http://eprint.iacr.org/2004/337},
}