@misc{cryptoeprint:2013:117,
    author = {Namhun Koo and Gook Hwa Cho and Soonhak Kwon},
    title = {On r-th Root Extraction Algorithm in F_q For q=lr^s+1 (mod r^(s+1)) with 0 < l < r and Small s},
    howpublished = {Cryptology ePrint Archive, Report 2013/117},
    year = {2013},
    url = {http://eprint.iacr.org/2013/117},
}