Martin Burkhart Xenofontas A. Dimitropoulos Fast Privacy-Preserving Top-k Queries Using Secret Sharing. 1-7 2010 ICCCN http://dx.doi.org/10.1109/ICCCN.2010.5560086 conf/icccn/2010 db/conf/icccn/icccn2010.html#BurkhartD10