title: efficient integration and aggregation of historical information sigmod conference. authors: amr el abbadi , mirek riedewald , divyakant agrawal. venue: nan. year: 2002.0
title: efficient integration and aggregation of historical information mirek riedewald , divyakant agrawal , amr el abbadi international conference on management of data 2002. authors: nan. venue: nan. year: nan