Cryptology ePrint Archive: BibTeX Citation of Report 2014/977

@misc{cryptoeprint:2014:977,
    author = {Jeroen Delvaux and Roel Peeters and Dawu Gu and Ingrid Verbauwhede},
    title = {A Survey on Lightweight Entity Authentication with Strong PUFs},
    howpublished = {Cryptology ePrint Archive, Report 2014/977},
    year = {2014},
    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.