@misc{cryptoeprint:2009:138,
    author = {Jen-Chun Chang and Hsin-Lung Wu},
    title = {A Hybrid RFID Protocol against Tracking Attacks},
    howpublished = {Cryptology ePrint Archive, Report 2009/138},
    year = {2009},
    url = {http://eprint.iacr.org/2009/138},
}