@misc{cryptoeprint:2007:466,
    author = {Wei Wang and Xiaoyun Wang},
    title = {Improved Impossible Differential Cryptanalysis of CLEFIA},
    howpublished = {Cryptology ePrint Archive, Report 2007/466},
    year = {2007},
    url = {http://eprint.iacr.org/2007/466},
}