title: efficiently publishing relational data as xml documents. authors: berthold reinwald , jayavel shanmugasundaram , michael j. carey , eugene j. shekita , hamid pirahesh , bruce g. lindsay , rimon barr. venue: vldb. year: 2000
title: efficient filtering of xml documents with xpath expressions. authors: c.-y . chan , p. felber , m. garofalakis , r. rastogi. venue: the vldb journal -- the international journal on very large data bases. year: 2002