title: cost-driven vertical class partitioning for methods in object oriented databases vldb j.. authors: qing li , chi-wai fung , kamalakar karlapalem. venue: nan. year: 2003.0
title: cost-based selection of path expression processing algorithms in object-oriented databases very large data bases. authors: georges gardarin , jean-robert gruser , zhao-hui tang. venue: nan. year: 1996.0