@misc{cryptoeprint:2012:538,
    author = {Myungsun Kim and Abedelaziz Mohaisen and Jung Hee Cheon and Yongdae Kim},
    title = {Private Top-k Aggregation Protocols},
    howpublished = {Cryptology ePrint Archive, Report 2012/538},
    year = {2012},
    url = {http://eprint.iacr.org/2012/538},
}