@misc{cryptoeprint:2001:088,
    author = {Ignacio Gracia and Sebastiŕ Martín and Carles Padró},
    title = {Improving the trade-off between storage and communication in broadcast encryption schemes},
    howpublished = {Cryptology ePrint Archive, Report 2001/088},
    year = {2001},
    url = {http://eprint.iacr.org/2001/088},
}