@misc{cryptoeprint:2005:245,
    author = {An Braeken and Bart Preneel},
    title = {On the Algebraic Immunity of Symmetric Boolean Functions},
    howpublished = {Cryptology ePrint Archive, Report 2005/245},
    year = {2005},
    url = {http://eprint.iacr.org/2005/245},
}