title: niagaracq : a scalable continuous query system for internet databases. authors: yuan wang , feng tian , david j. dewitt , jianjun chen. venue: sigmod conference. year: 2000
title: niagaracq : a scalable continuous query system for internet databases. authors: jianjun chen , david j. dewitt , feng tian , yuan wang. venue: international conference on management of data. year: 2000