title: lockx : a system for efficiently querying secure xml s cho , s amer-yahia , l lakshmanan , d srivastava 2003. authors: nan. venue: sigmod conference. year: nan
title: lockx : a system for efficiently querying secure xml . sr cho , s amer-yahia , lvs lakshmanan , d srivastava sigmod conference ,. authors: nan. venue: nan. year: 2003.0