title: workshop report : the first international workshop on active and real-time database systems ( artdb-95 ) mikael berndtsson , jörgen hansson sigmod record 1996. authors: nan. venue: nan. year: nan
title: report on ngits ' 99 : the fourth international workshop on next generation information technologies and systems opher etzion acm sigmod record 1999. authors: nan. venue: nan. year: nan