title: an aspect of query optimization in multidatabase systems ( extended abstract ) chiang lee , hongjun lu , chia-jung chen sigmod record. authors: nan. venue: nan. year: 1995.0
title: description logics for semantic query optimization in object-oriented database systems domenico beneventano , sonia bergamaschi , claudio sartori acm transactions on database systems ( tods ) 2003. authors: nan. venue: nan. year: nan