@misc{cryptoeprint:2012:691,
    author = {Shi Bai and Richard P. Brent and Emmanuel Thom\'e},
    title = {Root Optimization of Polynomials in the Number Field Sieve},
    howpublished = {Cryptology ePrint Archive, Report 2012/691},
    year = {2012},
    url = {http://eprint.iacr.org/2012/691},
}