@misc{cryptoeprint:2011:642,
    author = {Yongqiang Li and Mingsheng Wang},
    title = {Constructing differentially 4-uniform permutations over $\mbf_{2^{2m}}$ from quadratic APN permutations over $\mbf_{2^{2m+1}}$},
    howpublished = {Cryptology ePrint Archive, Report 2011/642},
    year = {2011},
    url = {http://eprint.iacr.org/2011/642},
}