@misc{cryptoeprint:2009:329,
    author = {Mehreen Afzal and Ashraf Masood},
    title = {Efficient Approximation of Higher Order Boolean function in a Low Order Function},
    howpublished = {Cryptology ePrint Archive, Report 2009/329},
    year = {2009},
    url = {http://eprint.iacr.org/2009/329},
}