title: description logics for semantic query optimization in object-oriented database systems claudio sartori , sonia bergamaschi , domenico beneventano. authors: nan. venue: acm trans . database syst .. year: 2003.0
title: a cost model for clustered object-oriented databases very large data bases 1995. authors: georges gardarin , jean-robert gruser , zhao-hui tang. venue: nan. year: nan