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: structures for manipulating proposed updates in object-oriented databases. authors: michael doherty , richard hull , mohammed rupawalla. venue: international conference on management of data. year: 1996.0