Cryptology ePrint Archive: BibTeX Citation of Report 2009/303

@misc{cryptoeprint:2009:303,
    author = {E. Verbitskiy and P. Tuyls and C. Obi and B. Schoenmakers and B. Skoric},
    title = {Key extraction from general non-discrete signals},
    howpublished = {Cryptology ePrint Archive, Report 2009/303},
    year = {2009},
    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.