title: vxmlr : a visual xml-relational database system aoying zhou , wenyun ji , shihui zheng , hongjun lu , yuqi liang , zengping tian , long zhang vldb 2001. authors: nan. venue: nan. year: nan
title: implementation of magic-sets in a relational database system inderpal singh mumick , hamid pirahesh international conference on management of data. authors: nan. venue: nan. year: 1994.0