Cryptology ePrint Archive: BibTeX Citation of Report 2012/557

@misc{cryptoeprint:2012:557,
    author = {Stefan Katzenbeisser, Ünal Kocabas, Vladimir Rožic, Ahmad-Reza Sadeghi, Ingrid Verbauwhede and Christian Wachsmann},
    title = {PUFs: Myth, Fact or Busted? A Security Evaluation of Physically Unclonable Functions (PUFs) Cast in Silicon (Extended Version)},
    howpublished = {Cryptology ePrint Archive, Report 2012/557},
    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.