@misc{cryptoeprint:1996:003,
    author = {Ronald Cramer and Ivan Damgaard},
    title = {On Monotone Function Closure of Statistical Zero-Knowledge},
    howpublished = {Cryptology ePrint Archive, Report 1996/003},
    year = {1996},
    url = {http://eprint.iacr.org/1996/003},
}