title: description logics for semantic query optimization in object-oriented database systems acm trans . database syst . 2003. authors: d beneventano , s bergamaschi , c sartori. venue: nan. year: nan
title: composite object support in an object-oriented database system. authors: w kim871 kim , j banejee , h chou , j garza , d woelk. venue: proc . acm , oopsla , october ,. year: nan