Cryptology ePrint Archive: BibTeX Citation of Report 2012/620

@misc{cryptoeprint:2012:620,
    author = {Claus P. Schnorr and Taras Shevchenko},
    title = {Solving Subset Sum Problems of Densioty close to 1 by "randomized" BKZ-reduction},
    howpublished = {Cryptology ePrint Archive, Report 2012/620},
    year = {2012},
    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.