Cryptology ePrint Archive: BibTeX Citation of Report 1998/013

@misc{cryptoeprint:1998:013,
    author = {Yael Gertner, Shafi Goldwasser, Tal Malkin},
    title = {A Random Server Model for Private Information Retrieval (or How to Achieve Information Theoretic PIR Avoiding Data Replication)},
    howpublished = {Cryptology ePrint Archive, Report 1998/013},
    year = {1998},
    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.