title: change detection in hierarchically structured information. authors: jennifer widom , sudarshan s. chawathe , hector garcia-molina , anand rajaraman. venue: sigmod conference. year: 1996
title: change detection in hierarchically structured information. authors: sudarshan s. chawathe , anand rajaraman , hector garcia-molina , jennifer widom. venue: international conference on management of data. year: 1996