title: storing and querying ordered xml using a relational database system. authors: kevin s. beyer , jayavel shanmugasundaram , chun zhang , igor tatarinov , stratis viglas , eugene j. shekita. venue: sigmod conference. year: 2002
title: java and relational databases ( tutorial ) : sqlj. authors: gray clossman , phil shaw , mark hapner , johannes klein , richard pledereder , brian becker. venue: international conference on management of data. year: 1998