@misc{cryptoeprint:2006:231,
    author = {Sebastien Canard and Aline Gouget and Emeline Hufschmitt},
    title = {A handy multi-coupon system},
    howpublished = {Cryptology ePrint Archive, Report 2006/231},
    year = {2006},
    url = {http://eprint.iacr.org/2006/231},
}