Cryptology ePrint Archive: BibTeX Citation of Report 2011/707

@misc{cryptoeprint:2011:707,
    author = {Alex Biryukov and Ilya Kizhvatov and Bin Zhang},
    title = {Cryptanalysis of The Atmel Cipher in SecureMemory, CryptoMemory and CryptoRF},
    howpublished = {Cryptology ePrint Archive, Report 2011/707},
    year = {2011},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.