Cryptology ePrint Archive: BibTeX Citation of Report 2014/531

@misc{cryptoeprint:2014:531,
    author = {Paolo Palmieri and Luca Calderoni and Dario Maio},
    title = {Spatial Bloom Filters: Enabling Privacy in Location-aware Applications},
    howpublished = {Cryptology ePrint Archive, Report 2014/531},
    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.