@misc{cryptoeprint:2009:612,
    author = {Philippe Camacho},
    title = {On the Impossibility of Batch Update for Cryptographic Accumulators},
    howpublished = {Cryptology ePrint Archive, Report 2009/612},
    year = {2009},
    url = {http://eprint.iacr.org/2009/612},
}