@misc{cryptoeprint:2009:548,
    author = {Stéphane BALLET and Robert ROLLAND},
    title = {A NOTE ON YAO'S THEOREM ABOUT PSEUDORANDOM GENERATORS},
    howpublished = {Cryptology ePrint Archive, Report 2009/548},
    year = {2009},
    url = {http://eprint.iacr.org/2009/548},
}