Cryptology ePrint Archive: BibTeX Citation of Report 2013/464

@misc{cryptoeprint:2013:464,
    author = {Stephan Neumann and Christian Feier and Melanie Volkamer and Reto Koenig},
    title = {Towards A Practical JCJ / Civitas Implementation},
    howpublished = {Cryptology ePrint Archive, Report 2013/464},
    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.