Cryptology ePrint Archive: BibTeX Citation of Report 2013/112

@misc{cryptoeprint:2013:112,
    author = {Ulrich Rührmair and Jan Sölter and Frank Sehnke and Xiaolin Xu and Ahmed Mahmoud and Vera Stoyanova and Gideon Dror and Jürgen Schmidhuber and Wayne Burleson and Srinivas Devadas},
    title = {PUF Modeling Attacks on Simulated and Silicon Data},
    howpublished = {Cryptology ePrint Archive, Report 2013/112},
    year = {2013},
    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.