@misc{cryptoeprint:2011:635,
    author = {Marcin Rogawski and Kris Gaj},
    title = {Groestl Tweaks and their Effect on FPGA Results},
    howpublished = {Cryptology ePrint Archive, Report 2011/635},
    year = {2011},
    url = {http://eprint.iacr.org/2011/635},
}