@misc{cryptoeprint:2012:489,
    author = {Zahra Ahmadian, Mahmoud Salmasizadeh, Mohammad Reza Aref},
    title = {Recursive Linear and Differential Cryptanalysis of Ultralightweight Authentication Protocols},
    howpublished = {Cryptology ePrint Archive, Report 2012/489},
    year = {2012},
    url = {http://eprint.iacr.org/2012/489},
}