title: a general techniques for querying xml documents using a relational database system. authors: stratis viglas , eugene j. shekita , rajasekar krishnamurthy , jayavel shanmugasundaram , jeffrey f. naughton , jerry kiernan , igor tatarinov. venue: sigmod record. year: 2001
title: relational databases for querying xml documents : limitations and opportunities. authors: jayavel shanmugasundaram , kristin tufte , chun zhang , gang he , david j. dewitt , jeffrey f. naughton. venue: very large data bases. year: 1999